It’s pretty much understood that any time someone brings up insensitivity about race, gender etc., they will inspire many “you are overreacting” or “this is not actually a problem” responses.
I’m confused as to what motivates these kind of responses. They seem defensive, as if they are personally being accused. I’m not entirely sure what is at stake for them.
I have seen plenty of online examples of people outraged about issues that I’m not entirely sure are valid, but I’ve never felt the need to tell them that, it doesn’t seem like there is much at stake if someone is a little over-offended. It seems easier to let them just process it and continue learning about themselves and the issues they face. Plus, I’m not I their shoes so I can’t know for sure what their experience is, so I’m not in a position to correct them anyway.
Also, your account seems entirely valid. I’m not a fan of “Delete It” ultimatums, but I’m happy to know more about the issues my Asian colleagues face everyday.