Why is it now okay to be racist towards whites, but not others?

Shouldn’t it be that it’s unacceptable to be racist towards every race? I’ve noticed that some minorities are openly saying racist things about white people now and are being cheered on/applauded for it. While obviously if it’s the other way around, people get cancelled. I get that historically, white people were oppressors and did horrible things, but in my view, being racist towards them now doesn’t somehow make things right. If we want to move away from racism altogether and move towards acceptance of eachother, we should not be tolerating racism or prejudice of all races, not just cherry picked ones.
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I’ve even noticed white people saying racist things towards their own race to appease political correctness and garner respect from people. I just think racism is wrong towards every race. We are all just human beings. Also, we are not defined by what our ancestors chose to do. I am mixed with a lot of races by the way
Why is it now okay to be racist towards whites, but not others?
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