It's not just the stuff that happened when they started lying and murdering the Native Americans hundreds of years ago but also a continual of shameful acts and conducts by White-Americans throughout American history i.e., KKK.
I get why my Professor is not proud of those White-American atrocities because out of all the American groups, the Whites have done the most damage throughout American history. And yep, other American groups have done some damage of their own too through out American history but not any where magnitude of the White group. He reminds me of those Germans that are not proud to be German due to the atrocities that happened in their history i.e., Hitler, the Berlin Wall, etc., even though they didn't have a hand in it directly.
And thanks for the correction regarding the woman in the video. The initial video was blurred but she looked White to me. Regardless of race, she is still wrong for saying that Latino Officer wants to be White because even some Whites don't want to be White.