The far left have always been the most violent and thuggish part of the political spectrum.
You should never say something like "have always been". Obviously there are times and places where right wing partisan thugs were the more violent. Perhaps you can argue there has been more left political violence in the west since WWII and be generally factually correct, but it really depends on how you define sh**t and if you're biased you can bend the numbers pretty easy to suit whatever conclusion you want.
This isn't like Islamic violence vs non-Islamic religious violence where the numbers are ridiculously one sided and even an extremely biased person can't fudge the numbers enough to fit their preconceived notions, which is why they have to resort to lesser debating tactics when it's mentioned.
