A couple of thoughts:
* AmGreatness is pretty closely associated with the Claremont Institute, a conservative outfit whose primary role these days is to provide an intellectual sheen for Trumpism. There long-term project, though, sees the original sin of America mostly in terms of the rise of progressivism in the early 20th century, along with with the "administrative state" it helped enable. Some of these critiques have merit -- Woodrow Wilson was really a racist asshole! -- but it is also the proverbial man with the hammer who sees the whole world as a nail. The errors of Herbert Croly explain everything bad in the United States, even when they don't, really. Ascribing the Tulsa massacre to progressivism is ridiculous.
* Why? Because Americans were enslaving and killing African Americans long before progressivism reared its head in the United States. The KKK was not a left-leaning outfit. Americans didn't need ideology to kill black people. It's what we've always done.
To be fair, AmGreatness acknowledges that, but only in throat-clearing fashion.
* Anyway, for the AmGreatness crowd, racism doesn't seem to exist, except in that A) it can make the left look bad, or B) when it does happen, it's actually "multiculturalists" criticizing and opposing white conservatives on college campuses. Meanwhile, the AmGreatness crowd is pretty terrified of the influence of minorities in the country's culture. Make of that what you will.
To be fair, AmGreatness acknowledges that, but only in throat-clearing fashion.
* Anyway, for the AmGreatness crowd, racism doesn't seem to exist, except in that A) it can make the left look bad, or B) when it does happen, it's actually "multiculturalists" criticizing and opposing white conservatives on college campuses. Meanwhile, the AmGreatness crowd is pretty terrified of the influence of minorities in the country's culture. Make of that what you will.
I can honestly say that racism in American life has come from the left, the center, and the right. I don't think Trumpist conservatives are willing to make the same concession. I'll leave it to others to decide whether that position is held in good faith.