As an American, I'd say no.

We've known about these things for a long time, but our public education system doesn't adequately teach people our history in most states (because the curriculum is controlled at the state level). I'm well read in history and I didn't learn about the Tulsa Massacre until my early 30's, reading a history book for my own personal enjoyment. That should have absolutely been part of the history curriculum I was taught about the history of civil rights in this country, but it wasn't.

Obama's presidency marked a major cultural shift, where things that people may have tolerated previously were (rightly) no longer acceptable. Trump's presidency marked an equal and opposite shift in the other direction, where people, looking at Trump's example, understood free speech to mean they could say whatever they wish without any form of accountability.

The easiest way to say it is that our country's relationship to race is complicated.