Hey, I’ve got a (albeit very minor) mental disability and I use the word casually around friends all the time, but I just want to point out that it’s you and me that are tainting the word, your comment makes it sound like “other” people are the cause of it no longer being a clinical diagnosis rather than an insult.
That being said it’s definitely falling out of favor in the public eye. It probably won’t be too long before it’s viewed at or close to the same level as the hard R. I think a lot of us are getting cancelled in 20 years.