Every few years some people decide you can’t use certain words because they have become negative terms to some group. So they invent a new term for the same thing and as the years go by and more people use the new term, it gets the same negative association that the old one had. Then the cycle begins anew.
Sometimes it’s good - a lot of slurs that were ok for anyone to say when I was a kid are now socially unacceptable and that’s great. But sometimes the SJWs take it too far and I think this is one of those times. I don’t understand the reason for the push to call them “unhoused” but I’m willing to be educated.
Once you hit middle age and have seen this happen a few times you’ll usually just roll your eyes and carry on.