Yup. The confederate issue wasn't a hotbed topic pushed by politicians -- it was pushed by the citizenry. Pretty grass roots backlash to Charlottesville.
I don't think you had people superimposing white supremacy on other presidents because they weren't white supremacists. They were pretty black and white about it (no pun intended). Biff uses his usual blustering word salad that means whatever mood he's in. It's wrong, but there are many sides, but he has spoken out against racism, but there's good people on both sides, etc. He was sued for it, he's been accused of racism, his dad was racist, he should get ahead of it instead of his silly rambling. David Duke and supremacist protesters wearing his MAGA hat didn't help any, either.
So basically the country listened, watched, heard Biff and responded with, "White supremacists say they can gain momentum with you in the White House and they're publicly marching so... we're taking down the statutes now, Biff." I find that a totally bad-ass, quintessential American move. White supremacists try to rally and start growing and the country swamps them and tears down confederate icons. The poor girl that was killed kind of triggered this viral movement. Gotta love this country. As usual, conservatives (some - not all) are on the wrong side of history and are have their bottom lip stuck out. Good riddance.
They really should move to a third world country with no government, romanticize if not have outright slavery, theocracy, everyone has guns.... why are they even here? They should just leave and everyone is happier.
And yes, racial division is a pretty good reason to remove statues of the defenders of slavery. I can't see that having them up has healed anything.
