You asked yesterday if anyone asked the protesters their thoughts about white supremacy... I did run into one interview online:
"Michael Von Kotch, a Pennsylvania resident who called himself a Nazi, said the rally made him “proud to be white.”

He said that he’s long held white supremacist views and that Trump’s election has “emboldened” him and the members of his own Nazi group."

Well, there you go! An actual interview about a rallygoers thoughts on white supremacy.