I am not sure why you're being downvoted, because I not only have witnessed this happening within my own family/friends (it is sad and scary), but we are now having studies show that some common forms of anti-racism training has a "backfire" effect that produces more racism. https://hbr.org/2016/07/why-diversity-programs-fail

This is alarming not only because of the obvious reason--racism sucks and we should be trying to eliminate it as much as possible--but because the current political climate means that people are too scared to speak up and say, "Hey, can we please maybe re-think how we approach this so we don't accidentally cause harm?"

I know this from experience. I spoke up about this at my company, pointing out that the form of training we use has been shown to have a backfire effect that hurts minorities. The backlash was swift and damaging--I was accused of being a privileged white person with hurt feelings who "wasn't willing to do the work." Meanwhile I got over a dozen private messages from minorities thanking me for speaking up and stating they had identical concerns.

I will definitely not be bringing up my concerns again, and neither will anyone else in my company with half a brain. Which means my company will continue to use a form of training that is known to increase racism, which freaking sucks.