Kinda feel a bit bad for the white supremacists. They honestly thought that Trump was totally behind them - make america great again. They understood it as - make america white again. So they voted for him. Trump's recent accomplishments of rounding up the illegals (brown), and banning Muslims into the country fueled their belief that their country will once again be a nice white country again. Back when it was great. They saw his refusal to pay for abortions and prayer meetings at the White House as a sign that America will become Christian again. For them, Trump was delivering them exactly what they wanted.
They see Trump's condemnation of the events as a betrayal. Very sad.
by the way - don't even think that I approve of the events or the mindsets. It' s the Canadian side of me that tries to understand both sides.