Maybe you can go about daily life and relationships with no major hurdles, but plenty of us have gone though a lifetime of suffering to barely scrape through daily life on our own. Even more cannot live an independent life and require a caretaker forever. Some can't talk, can't feed or dress themselves.
I don't think it's necessarily wrong for people to say they are autistic and would stay autistic given the choice. I don't think it's wrong to say the opposite. I get much, much more uncomfortable when that choice is external. If my parents knew I would be autistic, they would have aborted me. I think I've been a force for good in the world even with my trauma. I dunno, that makes me sad to think about.