-Certain people do say "I don't see you as black" when black people don't fit America's stereotype of black people or if they don't actually know any black people and their only exposure to black people is through the media.
-Bisexuals face erasure whenever they're accused of being greedy or confused.
-As for mental illness, there are some people out there who are convinced it's not a real thing and that people are just whining.
I've never actually heard anyone say "don't erase my ___" out loud or in person. I usually only hear people making statements that would provoke someone to say "don't erase my ___."
