I have seen this many times. It always reminds me of those who without saying it hold these biases. 6-7 years ago, I was accused of not liking white people. As a person of mostly white European ancestry, I was so confused. I must have been saying something to alienate them or make them uncomfortable. It did not change my teaching, but it is interesting how whatever I was saying led to that. I do not shy away from teaching all the parts of history so perhaps that was it. As an English teacher, I have a freedom to go to the literature and find the facts. I think it is important to push boundaries, push students out of comfort zones. We cannot grow if we brush aside discomfort. Face it head on. Be bold. Be brave. Be better!