I wasn't aware Musk admitted he has autism, I don't really follow him but read one article where childhood bullying was mentioned. (It probably caused insecurity which is part of the reason for his success and part of why I would expect him to attempt to use Twitter ownership to influence public opinion.) Autism was just a guess from sparse observations that I have.

Having autism would not be an excuse, by the way. It's just orthogonal and isn't something people are assumed to have say in, like their skin color. Attacking that (calling emotionless Borg and so on) actually hurts any point about specific problems with his actions.