"Advocating violence" basically just means telling people to go commit some act of violence. I wouldn't lump in supporting an act of violence that happened hundreds of years ago. If you're saying "we need to do that again" then, yeah, that might count, but if you're just supporting it: you should be fine — but if you support, say, lynching a Black man: that could count, even if you ain't saying it should happen again, but I ain't sure.

It's pretty hard to find where to draw the line. u/Magnora7 u/d3rr what do yall think?