I won't try to quantify the difference between what I saw at Trump rallies (usually one lone idiot taking a shot at someone) with all of what's happened in the the streets this week but let's just take your comment on it's face...so this excuses it? Makes it somehow not as bad? Where does it end? Riots? And then we say folks rioted because it was a "direct response?"
People need to just fucking own shit.
The ugliness and rhetoric Trump has brought to the race has really amplified the negative emotions on both sides. It's not his fault that people on the left are getting violent, but I think we can see a cause and effect here.