The rise in white supremacist violence including anti-Muslim and anti-Semitic violence is very very worrisome. Murders doubled in 2017 vs 2016, very bad.
From these #'s, it seems BLM aren't very violent, though they do say dumb things sometimes (as is everyone's right) but I still support their movement generally.
Antifa has violent elements within it but that hasn't resulted in deaths according to ADL which is good, so just riots, assault, vandalism, threats etc. aka a bunch of young punks.
The radicalization of our politics generally is a worrisome trend, with extremist elements committing more violence and murders.