Okay … First of all: I don’t want to cheapen your arguments or anything but I think that’s kinda out of topic again.
You’re talking about the hardware here. A problem that only affects a part of the players since Xbox and PS4 don’t have mouses. Also not every PC player has had problems with this (… I guess xD).
Movement changes affect everybody because they’re part of the software that is run on all platforms.
So imo there’s a difference between quitting over a change of controls on your keyboard/mouse and quitting over a complete revamp of a core game feature that (I’m referring to the revamp, don’t get me wrong here ;)) has many problems. I won’t list any now, I don’t want to bore you since there are already many arguments in this thread or over here: Dodge after-update-poll for example.
But to conclude, again, I don’t want to decry any of your arguments or posts.