How are you forced to use it in Xcode? If you don't opt to use it then you don't see it.

I saw multiple comments on HN complaining about Firefox adding AI. I use FF every day and what happened is there was a single popup asking you if you want to opt in to try using it next to an icon you can hide. In the year since I said no to both I haven’t been bothered once.

People just like to complain