I believe is too late, go to right wing websites such as redstate.com, and you will notice that the bloggers are pretty much condemning Trump, some in very strong terms. However if you read the comments, the sense is of “both sides do it” and a sense that “white-supremacy” is as respectable as any other ideology. And by the way something that trump also mentioned “the alt-right protesters had a permit”.
So yes, thinking conservatives see the dangers, but the movement that they and their allies at Fox News had been stoking for the 8 years under Obama, with all the dog whistling and whatnot has already grown into a monster they cannot control any more.