Both sides do some similar things. However, so far, only one side calls the Free Press "the Enemy of the People" and taken to routinely attacking political opponents with a level of vicious vitriolic rhetoric rarely seen in the United States. Only one side calls compromise blasphemous. Only one side has taken lying to ignorant and ludicrous levels. Yes, a Bernie support went crazy and went on a shooting spree at that baseball practice. How many of those Republicans had Bernie been routinely attacking from his "bully pulpit", at all those rallies he was doing at the time?
Well it's now "OK" to heckle republicans in restaurants, and even knock the take out container from McConnell's hands. Imo, the gop brought this on themselves. Not only for supporting Trump's rally cries of violence against protestors, but also for not calling Trump out on birtherism. They cannot acquiesce to calling a president illegitmate, and then find something wrong with the worm turns on them.
And it's not going to end so long as Trump is potus.