1/3 of my people were subject to genocide infamously by oven, more recently than slavery, but I'm not expecting people to remove any reference to fire or pizza from my life, that would be absurd. So is this. None of the people coding were slaves, I guarantee it, and they can move past it just like all other populations move past various atrocities that they experience. This focus on blacks is a fad, you can arbitrarily define a near infinite number of "marginalized" groups if you carve up 360MM people.
But what does make it difficult is being told all your life that you are a victim, held back by something about yourself that you cannot change; that's how you breed weakness and teach learned helplessness.
Treating other humans with respect is a core value of mine. I try as much as I can to listen to their concerns and be mindful of them. I'm truly sorry that you seem to only see this long-awaited reckoning with America's deep white supremacist roots as a "fad".