(I thought this was going to be a thread about Marie Kondo...) joking aside, the uninvited touching is definitely something I’d bring up to HR.
Edit - very few people like uninvited touching, autistic or not; in most (if not all?) environments it is classed as harassment and even battery (doesn’t have to be physically harmful or damaging).
If you do get called autistic if you complain (to the perps or HR), it’s likely they’re trying to shame you in order to undermine your personal boundaries. You are right that unwanted touch likely upsets some autistic people to a greater degree, but being unhappy with the touching doesn’t mean you’re autistic, if you’re worried about that. The people you work with are in the wrong, regardless.