> The euphemism treadmill is a running joke,
It feels more like a minefield than a joke. A minefield that gets new mines added every so often just to keep everyone on their toes. When I was younger, I used to feel like I could keep up with all the new taboo words, but it seems like it is happening faster and faster these days.
You can unintentionally say something that turns out to be taboo, and you're done for. Some years ago, I causally used the "r-word" and didn't even think anything of it, and blam! big mistake. We used to toss that one around all the time back in the 80s and 90s, felt kind of like a jerk when you used it in the early 2000s, but in the 2010s it's become totally lingua-non-grata. We learn the hard way from these experiences, but it does feel like a growing minefield.
Worse, when something innocent we write/say today becomes a slur in 2040, future people will dig back in time and judge us by the words we wrote in 2020. Do you know what will be a slur in 20 years? I don't.