One thing has become painfully clear during the 2016 Presidential election cycle. Fanaticism is flush in the electorate. Some, not all, go head strong into proving that the worst extreme is their mantra. It rises in both parties. My way or no way. Or else. 
Yes, Trump is dispicable in his attempt at rhetoric, perhaps the worst example possible because it comes directly from his mouth. But some of the Trump supporters are fanatical as a result and sadly this is encouraged by Trump.
Anti Trumpets, however, destroy their self perceived moral high ground when they go fanatic and think free speech is only their right. I get it. Trump is insulting and disgusting, but he has the right to make as much a fool out of himself as anyone else.
It's both sides. Even some Sanders supporters love the revolution at the expense of integrity by showing they want what Bernie wants and you had better want it too. Or else. The good side of that is those fanatics clearly are not emulating Bernie's integrity.