OK, one instance of students (who were clashing with far-right protesters who were armed) and the rest which aren't students, so a complete non-sequitor.

In that case I bring out all the right wing terrorists of the past decade.

Christchurch shooter, Charleston church shooter, Charlottesville car attacker, Bundy ranch hostages, pro-Trump agitators in the Berkley protest you list, Pittsburgh synagogue shooting, Colorado planned parenthood shooting, Layfayette trainwreck shooting, Norwegian Brevik mass shooting, Comet Pizza and many Q-Anon related murders, it goes on and on.

It appears the right wing is increasingly violent and radical, which has many people worried.

Fascism starts with violence, anyone who recognizes the threat posed by right-wing terrorism understandably would want to stop it before it goes further. The world has seen where that ideology has taken us before, unfortunately it seems to be fading from collective memory.