There’s a clear campaign against the mentally ill with the global rise of fascism. Lots of it shows up in anti homeless rhetoric, but you can see it in the MAHA and anti vaccination movements.
There’s no reason to use the word “r-tarded” to describe someone. As someone who’s worked with the intellectually challenged, it’s an insult to them to compare them with people who are willfully ignorant.
While this is technically correct, when you say “we’re switching the default branch name from master to main to be less culturally insensitive”, you kind of imply that people who continue using master are culturally insensitive. And nobody likes being called that (generally), so it still feels like a ban to people.