I have thought that the Left will use violence to stop Trump because of two reasons. (1) Power is their religion. That is they do not have transcendental traditional religious values. Thus they bring to politics all the fervor you would normally find in religious fanatics. (2) I have some interest in Marxism and am aware of some of its doctrines. See some Marxist writings and you too will see that  the tendency is to advocate violence. Plus I saw that these kinds of books were being taught even in the humanities and social studies departments of good universities that I was in like Polytechnic in NY. So in terms of that I have to agree with the previous comment.

See the links to Marx and Hegel on the internet and you will see what I mean