Trump will be given a hagiography by the media who will paint over all the shitty policies he supported. Just like with George W. Bush, Bill Clinton, George H.W Bush, Ronald Reagan on and on and soforth. Any efforts which succeed due to grassroots organizing, revolt, etc. which are demonized today will then be co-opted by liberals to use as a beating stick for later discontents as to how "they" should organize politically. See the Civil Rights movement for an example.
As far as Trump's racism, that's nothing new in this country. Look at Woodrow Wilson with his active support for segregation and white supremacy. Or Andrew Jackson and Andrew Johnson for that matter.
I think the biggest change is how the reactionary turn in this country will be portrayed. Typically when people think of organized reactionaries they think neo-Nazis. With groups like the Proud Boys and the embrace of individuals like Kanye West, Candace Owens, I don't think what some on the Left picture as a reactionary will look the same.