I think a couple things are different. First off, white nationalism has been embraced by a large portion of the republican party. The days of winks and nods about "state's rights" are over. It's full blown white nationalist rhetoric being pumped out from Fox News and then turned into policy on the state level across the nation. We have one major republican candidate for president (Trump) trying to hire a white supremacist onto his campaign team, and the other major republican candidate (DeSantis) openly supporting the white guy who killed that black homeless man in NY.
The second thing is more important and seems like a major shift to me, but I'm no expert on this shyt. It seems clear to me that everything we're seeing - the return of racial IQ "science," the onslaught of black fight videos on twitter, the nonstop focus on black crime from Fox - is a direct reaction to BLM, George Floyd, and mainstream media's coverage of white supremacy. Consider the logic on display: black people commit the majority of violent intra-racial crime in America, they are the Real Racists, and the liberal media focuses on a minority of cases like George Floyd in order to hide the truth and radicalize people. Therefore the real victims of racism in America are white people.
Elon has made multiple statements or winks/nods that he believes this, and he's playing his role by pumping as much "black people are violent" content onto Twitter. Republican governors are playing their roles by erasing black history curriculum of any hint of black victimhood. And Fox News are playing their part by, until he was fired, employing a man who spent the last few years pumping white racism into the homes of millions of Americans. In many ways a lot of this stuff was packaged the best by Tucker Carlson. From portraying any hiring of a black person as wokeness/affirmative action, to denying the existence of institutional racism, to obsessing over random black crimes across the nation.