If you look at the people who are aggressively leftist on university campuses you'll find that many of them are snowflake liberal arts students doing degrees in non-subjects like Oriental Studies or Russian Literature. The people who get so worked up at university are the new generation of millennials who subscribe to the notion that they're entitled to free education and a six figure salary post-graduate for the simple fact that they're a human being. I understand that freedom of expression is becoming a rarity on many university campuses - especially for people like us who are politically conservative - but you shouldn't feel threatened by blue-haired feminists who want to silence the opposition using one of their four buzzwords: racist, bigot, homophobe or sexist.
I would also make the distinction between "liberal" and "leftist". A leftist is someone who is at the radical end of the political spectrum who abides to the notion of political correctness and the demise of freedom of thought and expression. A liberal, however, is someone who follow progressive principles but also believes in true liberal policies like right to offend and the right to bear arms. A good example of a liberal is Dave Rubin - you should Youtube him as his interviews are superb.