No Reservations! I was born at a very young age

I see a lot of talk about how neurodivergence evolved and stayed in the gene pool because it was somehow ‘useful’ to our ancient ancestors. While I don’t necessarily disagree with this theory, I would like to propose an alternative. A theory that we already have physical evidence for. Humans just love each other and care for each other. Don’t you think that a species that cared for it’s people while they recovered from broken bones, or nursed their elderly well beyond their ‘usefulness’ would leave a member out because they didn’t make eye contact, or couldn’t stay focused on a particular task, or whatever other trait you associate with neurodivergence? I really don’t.