'There are racist people everywhere.' That's true. But that's also "what-about-ism." Let's stick to the main offender, and deal with the others after. Yes, slavery was abolished by good white people because only good white people wielded the power to do so, same as bad whites wielded the power to enslave blacks in the first place. The KKK was a defiant reaction to the abolition of slavery, and the Black Panthers was a militant group that rose-- why? In reaction to racist oppression. Same with BLM. Fire fought with fire. Personally, I don't support violence or hatred of any kind.
Successful people like Oprah, Obama, Michael Jordan, Tiger Woods, Michael Jackson, et al, benefited from the sacrifices of brave civil rights leaders like Martin Luther King Jr. Their struggle and their deaths paved the way. And yet, the ugly racism persists even there, as white people suddenly accept many super-successful blacks as not black anymore! They're part of the club. And that club is all about green. I recommend you watch the Oscar-winning documentary called "O.J.: MADE IN AMERICA (2016). That film series brilliantly breaks down the racist structure in America, and how that played a vital role in the life of O.J. Simpson.
As for affirmative action, that, too is a reaction to the unfair economic playing field which prevented blacks from getting the necessary education for obtaining the better jobs, all previously withheld from them. Those whites who complain about that, whining about it being unfair to them, ignore all the inequality blacks have been subjected to for so many generations. They choose to overlook it because they mustn't be made to suffer for what evils their grandparents committed. Affirmative action was a program intended to give blacks a much-needed boost. Racist? Fighting fire with fire until the valley is safe for everybody. Simple as that.
Ever see the smaller, scrawnier k!d getting picked on by the bigger, brawnier k!ds at the playground? In a footrace, the bigger k!ds whoop the little one every time. Why? Because of their unfair advantage. And that's why, in a footrace, the smaller k!ds are-- what--? They are given a head start.