Because for some reason everyone always collectively agrees that it's absolutely unacceptable to ever punish racists. Didn't happen for the Confederacy, or for the lynchers, or the anti civil rights adults who attacked children for simply attempting to attend school, not the actual Nazis or the American Nazi party nor it's predecessor (look that one up). Everyone collectively agrees we must punish everyday people for everyday crimes but never ever can we even consider punishment for the richest and most powerful commiting the most heinous crimes at national or even global scale...no that would be too "cruel", so we must allow them to fester and destroy every bit of progress our species ever makes no matter how many millions of us had to die for that centimeter of progress.

Reconstruction was a failure that didn't go nearly far enough. All the same levers of power were left in place for someone else to use. After decades of planning, they're in use again. The Supreme Court is a right wing extension of the fascist movement that holds control of the presidential and congressional branches and every Southern state's legislature. They played the long game while Liberals were too busy protecting capital interests to recognize or care about what was obviously happening. And now we're here. With enough time, things will swing back our way, but if the next equivalent to the Reconstruction fails to pull out the weeds from the root, our great grandchildren will be right back where we are another hundred years from now.

Capitalism. Racism is a lever the capitalists pull to divide the working class whenever they feel like we’re getting uppity.

This state was concocted by literal enslavers on a foundation of slavery, genocide, patriarchy, etc.

I'm pretty sure racism has only lost once. Then they murdered the dude responsible and created conditions almost as bad as slavery.

Not to mention the constant and extremely racist attacks on the rest of the planet.

Racism has always won in USA.