Ah, always the "but". So following your logic, those young girls that have been assaulted in Europe while at the swimming pool must "bear some responsibility" because after all they are outside of the house and not fully covered, right?
Do you really think that leftist protesters won't disrupt any other conservative's campaign events? Trump and his supporters don't go out and start trouble, but they have the unfortunate problem that leftists and Sanders supporters constantly attempt to disrupt the Trump rallies.
Those same protesters will turn on Cruz, or Rubio, or even Kasich if they get the chance. But right now they are concentrating on the biggest threat to their ideology. Why Cruz, Rubio, Kasich and people like you are supporting them is beyond me.
Trump is not the equivalent of young German girls minding their own business and going to the swimming pool. Here's a better analogy:
There are "femen" protesters in Europe who provocatively bare their breasts and shake them at politicians, bishops, etc. while screaming obscenities. They are obviously the fringe, and they deserve to get their rotten selves arrested. They are getting over the top, though, because your average feminist has gotten pretty far out there with her insults and attacks on normal men (and women), so they have to be extremely outrageous to get any attention.
I think some of that same dynamic is going on here. The temperature has been turned up.
And please note that I am not, repeat not "supporting" the BLM/moveon thugs because I believe that some of Trump's words and actions have facilitated or encouraged more extreme behavior. It is possible to note problems with a person's conduct without being his enemy or supporting his enemies.
It would be nice if you could make that distinction with respect to others as well.