Honestly I do not remember any of that being an issue in the 80s/90s the few actual diagnosed autistic kids were in the special education class once we got to high school and that class was still only maybe a dozen kids total. Any allergies kids had, they managed themselves but I’d never heard of gluten till I was in my late 20s. And we had gay and lesbians in high school, but other than hanging out with what ever cliche they ran with, there were never issues, never heard complaints from friends that I had that were gay or lesbian either.