There is a close connection between violence and left wing politics. The reason was pointed out by Dr Michael Huemer. The Left goes by moral relativism. Systems that have at their core moral relativism do not believe in rational dialog. So the only way to argue for your beliefs is by violence. It is not them the best option. It is the only option. And this goes for any system that does not belive in rational dialog.
Lock and load.BobIII
We's all done, done that. :)