It’s not much of a step from, “if you hold those beliefs, you’re evil,” to “you’re evil, and must be eliminated.”
If a conservative disagrees with leftists, they’re “inciting violence.” When leftists refuse to denounce the violence the left inflicts on conservatives, “well, it’s just fringe groups,) yet they never condemn the violence, allowing that sometimes violence might be justified.
Historically, the left has never hesitated to use violence and murder against those they oppose, even resorting to genocide. Mao, Stalin, and Pol Pot immediately come to mind.
Mark
There are only two major purveyors of terrorism--Islamists and leftists. I do not know which one has caused more misery and death.