"The simple truth is that reaction feeds on disorder. And when there are legitimate means to stop Trump, you're just as likely to cause a backlash in favor of his effort by forsaking them to attack his supporters. (At the risk of tripping Godwin's law, German Communist violence against ultra-right targets in the 1932 elections didn't stop Hitler and his enablers as much as it emboldened and enabled them.) If anything, Trump wants violent attacks on his supporters. Don't give them to him."
Jamelle Bouie in Slate criticizes anti-Trump violence.