[freebeard]

Why can't Black people just get over centuries of brutal chattel slavery, lynchings, segregation, Jim Crow laws, discrimination, poverty, the for-profit incarceral state, slave patrols, confederate glorification, etc, etc?

That they never experience personally.

Where's the gratitude? Sheesh!

Muhammad Ali - Wikiquote
https://en.wikiquote.org/wiki/Muhammad_Ali
Ali replied, "Thank God my granddaddy got on that boat!" There is a characteristic mischievous pungency to Ali's remark, yet it also expresses a widely held sentiment. Ali recognizes that for all the horror of slavery, it was the transmission belt that brought Africans into the orbit of Western freedom.

You trying to label me as myopic or incapable falls flat.

"I reject you entire premise and substitute my own reality."

Urban Dictionary: I reject your reality and substitute my own.
https://www.urbandictionary.com/define.php?term=I reject your reality and substitute my own.
A quote from the low-budget sci-fi/fantasy film The Dungeonmaster, popularized by Adam Savage of Mythbusters, this quote basically means "you may be technically right, but you're not changing my mind." This can come off as stubborn, but it really doesn't matter, since you don't care about the technical "facts".