American-on-American Violence is Exactly the Point
The haters want American-on-American violence and so does this administration. It plays right into their hands. Trump is willing to burn this country to the ground to maintain the power and attention he craves. Trump supporters are only too happy to light the match of chaos and violence. This can't be allowed to happen.
We are starting to see the Left respond exactly as the haters hoped we would. The shooting in Portland might be the turning point. Perhaps we need a better strategy than reacting to their provocations? Maybe we need to get more creative.
For example, I suggest that the demonstrators start using the local fire hydrants to take out these caravans of Trump supporters whenever they parade down a street. Use roll-away dumpsters to pin them in and hose them down. Non-lethal but highly effective.
The best defense is to use what you are given. I'd be open to hearing more non-lethal ideas.