I’m also autistic and I have tried saying yes to things, but I just don’t enjoy it.
Friends are mainly just extra effort that I don’t have the time or energy for. I have one, and my dogs, and I don’t feel I need anything more than that.
Now I just work from home and only have to see coworkers every six months or so for an office visit. It’s pretty great.
Whilst I respect your experiences, they’re not a universal truth for everyone.