Attempt to represent your antinatalist argument.
First, attempt to clarify the meaning of key terms. I understand antinatalism as a view committed to negating the statement “Human procreation is morally permissible,” committed to by natalism. Natalism affirms the proposition “Producing human offspring is morally permissible” is true. Antinatalism, on the other hand, denies the truth of the proposition. It instead affirms the negation “The proposition ‘producing human offspring is morally permissible’ is false” is true.
Next, isolate statements.
To procreate is to create an innocent person. They haven't done anything yet. So they're innocent.
An innocent person deserves to come to no harm. Thus any harm - any harm whatever - that this person comes to, is undeserved.
Furthermore, an innocent person positively deserves a happy life.
So, an innocent person deserves a happy, harm free life.
This world clearly does not offer such a life to anyone. We all know this.
It is wrong, then, to create an innocent person when one knows full well that one cannot give this person what they deserve: a happy, harm free life. To procreate is to create a huge injustice. It is to create a debt that you know you can't pay.
Even if you can guarantee any innocent you create an overall happy life - and note that you can't guarantee this - it would still be wrong to create such a person, for the person deserves much more than that. They don't just deserve an overall happy life. They deserve an entirely harm-free happy life. — Bartricks
(Im leaving the entire transcript simply for context. The statements in bold capture the meat of your argument.)
Argument 1: INNOCENCE
1. Human offspring are necessarily innocent beings so long as they lack the capacity to participate in social interactions.
2. The human offspring produced through procreation lack the capacity to participate in social interactions.
3. Therefore, human offspring produced through procreation are innocent.
Structuring the argument this way disambiguates the term/phrase “They don’t do anything,” at least. It still fails to provide details regarding sufficient or necessary conditions for innocence (e.g., moral agency, gestational or prenatal development—postpartum development, social participation, physiological/psychological autonomy, etc). When is innocence lost? How is it lost? If we emerge randomly, without our choosing, and dependent upon external information, social influences, parents/peers, etc, for our development, then why is innocence considered lost at some arbitrary point?
Argument 2: DESERT
1. Innocent humans deserve to live a life with pleasure/happiness and free from pain/suffering.
2. The world is such that pain/suffering cannot always be avoided and pleasure/happiness cannot always be guaranteed.
3. The world, therefore, cannot provide innocent humans with the life that they deserve.
4. If the world cannot provide innocent humans with a life that they deserve, then they shouldn’t be brought into the world.
5. Therefore, innocent humans shouldn’t be brought into the world.
I not sure about this notion of desert. I think that a world free from suffering can be determined good on some normative views, as well as the presence of pleasure. Are you saying that the absence of pleasure is good? A type of a-symmetry take? Im not convinced that innocent humans inherently deserve anything (good or bad). Why should the universe owe us anything? Let alone a utopian existence.