Guys, this is how it goes, this is how it always goes.
There are a lot of us, and we're not monolithic, and the vast majority of us say over and over again, no violence, no violence, no violence, but everybody's mad, a lot of people are mad, and we don't have control over people's minds, we can't ensure that nobody who hates Trump will ever do anything bad ever again. And when somebody does something like that, we'll say "they don't speak for us", and they'll say "we speak for them", and who do you think the media are going to believe?
We don't have control over the "optics", we don't have formal power structures backing us up, and a lot of people are going to ask us to do the impossible and then blame us when we can't.