What else to expect from the left?
Leftist have always been violent, especially when they lose. They have history of antisemitism, of hate, of blowing things up.
Take some names like Jeremiah Wright, Bernardine Dohrn, Bill Ayers, Saul Alinsky...
Leftists are violent because their ideology is contrary to the human nature. They throw around terms like freedom, and equality, and liberty, but they stand for none of it. They are the people that believe in total control and if they're not in control, they take it to the streets. They try to use laws against us, and if law doesn't work they change the law to use it against us, and if law still doesn't work in their favor, they simply reject it while they pretend they're doing it "for the people".
Look at the things going on in California, they have nullification movement, sanctuary cities, than sanctuary state, and secession movement. They conducting themselves the same way South Carolina conducted themselves prior to the civil war, almost no difference in between the two. They're not promoting slavery, but they're not promoting liberty neither. They're promoting statism.
As you can see in OP, they claim others are dividing us and they want to keep us united, while in reality, it's quite opposite.
