Everyone. There will quite clearly never be total agreement but if enough people raise their voice in objection at being labelled as something they deem offensive then it's basic human decency to accept that and listen to what they have to say.
I don't know why some of you act like anyone is trying to control you and the words you use because , to be quite frank, you're not important. It's about the collective and having respect for others within it. This is also precisely why arguments like "my black mate, Dave, doesn't care what you call him" are completely irrelevant. My partner couldn't care less if I call her a woman but that doesn't mean I now have license to go around calling all women bitches.
Oddly enough, people of a certain age often seem to think those values of respect and good manners are things that have mostly disappeared since they were young and it's often those very same people who will kick and scream and drag their feet when it comes to changing how they address people when objections have been raised.
Like I said earlier, a mistake is a mistake. But it's quite obvious from a lot of responses on this thread (not to mention the countless previous threads where racism and racist language have been the main talking points) that there's a lot of willful ignorance from users on here.
The other thing is, how often do people feel the need to identify someone by the colour of their skin? Because there are people on here acting like they're walking on thin ice every minute of the day and living in fear that they'll say the wrong word. Seems a bit odd.
