Then what is there to argue? Pro-lifers ascribe moral worth to zygotes and pro-choicers don't. There is no objective fact-of-the-matter that determines one group to be correct and the other incorrect.
But not wrong (and stupid) to judge the moral worth of an organism based on the physical characteristics that determine its species?
False dichotomy.
I didn't say that they deserve to die. I have only said that we ought kill zygotes if it saves babies and that it is acceptable to abort a zygote.
What is the distinction between who someone is and what something physically is, in particular with respect to zygotes? You're the one who often argues against anything like a soul or folk psychology and reduces everything to base biology.
But again, you haven't answered the question. Why is it wrong to judge the moral worth of a human but not the moral worth of a non-human? You're engaging in speciesism without even attempting to justify it.
Well now we might be getting somewhere. Are you suggesting that a living organism has moral worth if and only if someone sees moral worth in it?
That leads to problematic scenarios, such as what if I see moral worth in cows or the serial killer trying to kill you, or what if the pregnant woman doesn't see moral worth in the zygote growing inside her but some random kid half the world away does?
That does not address my point. I'm not interested in sentiment (unless you want to argue that morality is sentiment).
You claim that all humans deserve to live, but then must also accept one of these:
1. No non-humans deserve to live
2. Some but not all non-humans deserve to live
3. All non-humans deserve to live
If you accept (1) or (2) then you accept that it is appropriate to weigh the moral worth of living organisms. I don't see why weighing the moral worth of individuals within a species is any less disgusting than weighing the moral worth of species within a genus (or higher up in the taxonomy).
And I'll add, you already accepted with the trolley problem that the lives of five zygotes are worth less than the life of one baby, so why the about-turn?
Oh, there's that infamous phrase from the Jan 6 speech, "fight like hell". @NOS4A2 likes to interpret that phrase as being in the context of campaigning for an election, "a hard fought campaign". Now we see the intended context very clearly, to fight after the election, to subvert the legal outcome. Of course, that was already obvious to anyone but NOS, because the Jan 6 statement was nearly two months after the election.
As established by the trolley problem, the moral worth of a human-as-zygote is less than the moral worth of a human-as-baby (and in fact, the moral worth of five humans-as-zygotes is less than the moral worth of one human-as-baby).
The moral worth of a human-as-zygote is equivalent to the moral worth of a plant.
I think it's not wrong, or at least negligibly wrong, or at least less wrong than forcing the mother to carry the child to term and birth it (much like it's less wrong than allowing a baby to die).
I didn't say it's right. I said it's neutral. The moral worth of a zygote is negligible, as shown by the trolley problem.
I misread and thought you were asking about me going back in time and then someone terminating my grandmother's pregnancy, and that it would be a Marty McFly in Back to the Future situation.
But as for the question as asked, that really depends on how time travel works. Does the future still exist in some sense but changes as the past is changed? That would change my answer. If the future doesn't exist then no, it wouldn't be wrong to terminate the pregnancy (but it may be wrong to have gone back in time as that would have erased what was the present and is now the future).
And as shown by the trolley problem killing five zygotes is less wrong than allowing one baby to die. Killing ten million zygotes is less wrong than allowing one baby to die.
The moral worth of one zygote is so negligible that killing it is less wrong than forcing a woman to carry it to term and birth it against her wishes.
That depends on whether or not killing the zygote in my grandmother's womb would kill me and my mother, because killing me and my mother would be wrong.
It's neither right nor wrong. It's morally neutral. We've established from the trolley problem that five zygotes deserve less moral consideration than one baby. And I'll go so far as to say that one million zygotes deserve less moral consideration than one baby. Each individual zygote deserves negligible moral consideration, and certainly when compared to the moral consideration of a woman being forced to carry to term and birth a child.
Develop into human beings. Interesting.
But also, why does it matter? Why is it wrong to kill something that develops into a human being but not something that develops into a fly?
As I said, in the scenario under consideration these are living zygotes growing inside an artificial womb. When we have to choose between doing nothing and letting one baby die or doing something that causes five zygotes to die, what should we do? We should do the thing that causes five zygotes to die.
And? It's not the biological stuff that's morally relevant. Ants are biological. Flies are biological. So what?
We're talking about whether or not it is wrong to kill zygotes. The manner in which the zygotes are killed is presumably irrelevant.
Your deflection is telling.
There are 46 DNA molecules, each tightly coiled around proteins, contained within cytoplasm and a cell membrane.
We can assume, for the sake of argument, that we are technologically advanced and have developed artificial wombs within which the zygotes in question are growing.
You said "this biology ... is present from the very beginning ... of every human being’s life." Except it's not. The genetics is present but the morphology and physiology aren't.
Then the moral dilemma concerns whether to kill a baby or an adult. We're concerned with whether to kill a baby or a zygote. So for the sake of argument we can assume that the zygote is not growing inside a woman but an artificial womb.
OK, construct a trolley-car type scenario (or any scenario really) where you refuse to sacrifice zygotes to save actual persons.
This is false. There's more to biology than genetics – there's morphology and physiology – and more than the stuff already contained within a zygote is required for it to grow into a baby (e.g. nutrients from the mother).
Words have meanings/usages - and your inconsistent statements render your arguments meaningless. Just to give a contrast, I disagree with @Bob Ross but his position is clearly articulated and understandable. I'll give you the last word if you want.
The second statement clearly contradicts the first. The second statement says that there IS a measurable property that appears (and may disappear) in any human being - namely the capacity to speak a language.
And again, you do not make any distinction between the terms "person/personhood", "human", or "human being" - so you cannot define your way out of this contradiction.
I don't know any way to make this any clearer.
What's corrupt about it? Lmao. The american people don't have a right to know about the anti-democratic bullshit the presidential nominee got up to?
It's really hard to follow what you're saying since you keep changing your terminology.
You have repeatedly stated that you do not see any difference between being a person and being a human being - so I was using your terminology. I'm assuming here that when you say "human being" then this entails being a member of the human species.
You're all over the map here contradicting yourself. Is there a distinction between personhood (being a person) and being a human being (i.e. being a member of the human species?) Yes or no?
And to answer your question, I consider a brain dead body on life support to be a hunk of meat.
I'll try one more time. What are the characteristics that describe a human person / human being?
Do you consider a brain dead individual on life support to be a member of the human species?
Still circling. You have not yet defined the characteristics that define a human person.
This is still circular logic. What makes one collection of cells and protoplasm a member of the human species? It is not merely the presence of a particular set of genes/chromosomes - there must be something else.
You are saying (or at least it appears that way) that a zygote is a human being because it turns into a human being. But unless you can give some definition/explanation of how to identify a human being this reasoning is circular and vacuous. And as you said elsewhere
Does your reasoning rely on some distinction between “person” & “human being”?
And it is a living thing.
If twin A is the same individual as the zygote and if twin B is the same individual as the zygote then twin A is the same individual as twin B.
Twin A is not the same individual as twin B.
Therefore twin A is not the same individual as the zygote and/or twin B is not the same individual as the zygote.
A placenta is a living thing.
The zygote grew into them, but they are not the same thing, as proven by the fact that each twin is not the same thing as the other.
As it stands you're saying that A is the same individual as C, that B is the same individual as C, but that A is not the same individual as B. That's a contradiction.
This is such an ambiguous question. Glass used to be sand, but sand isn't glass. Butterflies used to be caterpillars, but caterpillars aren't butterflies. My house used to be a pile of bricks, but that pile of bricks wasn't my house.
Your reasoning that "A used to be B, therefore A and B are the same individual" is fallacious. Identity doesn't work that way.