As an autistic person, no, many of us prefer to be called autistic people rather than people with autism. Person with autism makes it sound like an accessory that can be removed from the person. Many autistic people consider autism an intrinsic part of who we are.

You don't call gay people "people with homosexuality" or black people "people with blackness"

I mentally double check

So you're saying you... mentally challenged yourself?

And on the flip side, if you're intentionally being offensive, don't be shocked when people get offended. There's no polite way to call someone a dipshit or any alternative similar word. Insult is insult. I always find this amusing when the person deliberately causing offense gets offended that other people are offended by them being offensive. Not that I can tell from OP if they did or not, this is just a bugbear I'm scratching.

Native is fine in North America, but offensive in South America. Better to use Indigenous

I think its better to just bypass all of that unless you actually know where they are from and just say, dark skinned fellow. Light skinned woman. There is nothing wrong with using a descriptor.

I met a guy with Indian parents, but he was born and lived in the USA. I asked if that meant he was an American Indian. Nobody would answer me.

I got my shit handed to me because I said someone is mentally challenged.

Not to mention that this would get most people in trouble at work regardless of the term used for "mentally challenged".

Intent matters most here.

My nigerian friend swears he's not black but fair-skinned because one of his ancestors was white. Apparently once the bloodline gets dilluted, they don't count as black amymore.

Black for Sub-Saharan African descent, sure. Things get a bit more difficult if you want to talk about north Africans.

There is a mild push to "emphasize people first", i.e. not someone who is mentally disabled, but a person with mental disabilities.

Although having worked with clients who were, the term I learned and used as optimal was "adults with cognitive and developmental disabilities".

:shrug; I'm not suggesting that's "more correct", mind.

Before I even asked this i went through 5 pages of google search (and sorry I did) so I came here. I did not know I was so out of date. Hell I don't even know what a Pokemon is still.

Google’s servers would be screaming for mommy

I almost got fired because we have cubicle's. And my boss asked where a co-worker is at and (I meant the hair color) I just flippintly said oh you can see his black head over there. I got a major write up and had to appologize for being insensitive

There's a mild pref to put people first, e.g. "a person with cognitive or developmental disabilities", but I don't think yours is offensive, although it might get a comment.

Like when I first became a wheelchair user, I would say I was "chairbound" or "wheelchairbound" - but someone pointed out that some people won't help people in wheelchairs in emergencies because of a mistaken belief that anyone in a wheelchair can't be removed from it (many can stand and/or walk some short distance, others can't). So "chair user" is much better. Not to correct anyone, just because it can help in emergencies or whatever.

I don't make friends anymore. Because they seem to die. So basically I am walking through the valley of the shadow of death alone.