Young Republicans burning buildings and looting stores during the "close down" of 2020
May be before your time, but SDS was "big" when I was in college.
Students for a Democratic Society (SDS) was a national student activist organization in the United States during the 1960s, and was one of the principal representations of the New Left.
https://en.wikipedia.org/wiki/Students_for_a_Democratic_Society
I teach college students and post college singles at my church. The junk they have to wade through to get to an education is amazing. When I reference historical happenings or time lines, I far too often see how little of our own heritage they are aware of.
Exhibit A . . .