Love is an experience shared by all. — Tom Storm
(This is my first time using the quote function, I'll see how it turns out.)
I think that it is not that everybody has felt love, but everybody can feel love.
My experience with philosophical thinking has mainly come from fiction books. That is why I bring fictional examples to the table to get an emotional connection, without denying the need for base.
For this example, like you said gangsters who haven't felt love can have problems with emotional development. However, do you think it is impossible for him to ever love or ever feel love again?
Many times in fiction you see a gangster have a child and 'soften up'. Though only a fictitious example with little base to it, it is quite relatable (at least to the heart.) It also shows a possibility which isn't impossible.
However, my argument still falls to the same question,
'Are you certain that everybody can potentially feel love?'
I cannot say for certain because I have never met every single person on the planet.
All of this brings me to the question,
Is the ability to feel love something you are born with?
In the example with the gangsters they were not given love growing up, they started with the ability to feel love, but their ability to love was not 'developed/nurtured'. (Words that do not quite fit)
Does the lack of love kill the sense of it? Or is it just dormant like a seed during winter? I think the later is correct, because no matter how little evidence I have of my workings, you have just as little to oppose them.
P.S I know that my argument is based on mere ideas, and I will not argue if you wish to deny it. Through reading fiction I have gained the ability to think on a deeper level than before. Using these examples is how I can argue without practical experience or quoting the words of others.
Greetings.