Don't do that. Both are bad. The existence of one does not prevent the discussion of the other. Please do not try to derail or distract the discussion.

We can learn those things. These are not actively surpassed.

What? I learned about the Tulsa massacre, and another similar situation that I can’t remember (maybe in Florida?), in high school. How is it being censored?

I grew up in what would be called a progressive part of the US and was never taught about it. I felt angry and supremely let down by our education system that I only found out about this last week.

Education in the US is inconsistent because states determine what's taught. I only learned about it a few years ago.

Good video on the subject: https://www.youtube.com/watch?v=hsxukOPEdgg

I've never met a single person who was not taught about that in school a decade or two ago, from a very conservative area. That is just my experience of course, but I do find it perplexing. Was this many decades ago that it was not taught, or in a specific area?