How many acts of violence did you see at the Women's march, JeffJ? That was estimated to be around 4.5 million people gathered. I don't recall a single incident. When did you last see a right wing demonstration of 4.5 million people on the same day? I don't recall any, so there's no real equivalent.
Most of the time, the violence that occurs in the protests of "the left" is done by police and fringe anarchists, who are ALWAYS called out by "the left" who want nothing to do with violent protests.
On the other hand, the best you can ever hope for from "the right" when there is violence is a statement like, "of course we don't condone violence, but..." and "both sides"
You can't accept that right wing extremists exist in and of themselves. You have to insist on a false equivalence. You also don't have riot police gassing peaceful protesters toting guns at Tea Party rallies, but some dirty hippies in the park deserve a little head-bashing, amirite?