Top tier shitposting seems to be one of your more obvious qualities.
It is funny watching your "gotcha" fall flat on its ass though.
Dig through my post history. I've said some actual dumb misinformed shit before here. The worst one was probably me going full diet racist 2 years ago. Id like to think ive learned a lot since then.
The teacher's language certainly suggest it is, which does indeed prevent most real discussion and instead encourages the nonsense shitposting seen above.
I think the teacher could have been a lot more nuanced with how they got this message across but I don't think it's wrong. I'll take it even further and say that people period growing up in a racists society like America's are definitely going have some racial blind spots at the minimum. My post you quoted however is more about the discussion I'm reading on this page where some people believe that label racists must be reserve for individuals who are forthright and apparent (to them) with their racism. Like I was saying I do not believe that racism is a binary either/or condition. I think it's more of a spectrum, we all have our blind spots and we probably all said racists shit at one point in our lives. That's the consequence of being nurtured by a racist society like ours. As long as you as an individual are making a conscious effort to be not racist and learn from your mistakes when you slip then that's fine people won't be on your case and I don't think you have to worry about being branded with the capital R for the rest of your life.
That leads me to another thing where these discussion becomes about the person and not what the person did. If someone slips up and says or does some racist shit and people call it out as "hey that was racist" people take that to mean that you're calling them a racist and not addressing the action as racist. It really makes these discussions hard for people especially since some how being called a racists is now as bad as being called a racist slur. We gotta get past white fragility to make any step forward on this.