What is wrong with the student left?

The left is no more 'oppressive' than the right.
With right-wingers, if you think free-market capitalism is wrong and generally detrimental to social advancement in the long run, you're naïve and stupid and obviously have no idea what you're talking about.
If you dare not to laugh at a racist, sexist or homophobic joke, or if there's a glaring example of inequality that you feel the need to speak up about, you're a humourless loony latte liberal PC leftie luvvie who lives in an ivory tower in north London who is totally out of touch with the Silent Majority.
If you do not conform to the received view that immigration is a Bad Thing that is detrimental to Britain in every way, you're an unpatriotic idiot and perhaps you'd like to have x number of immigrants in your back garden.
If you're not rabidly and irrationally Islamophobic, you're a dangerous hypocritical traitor who is undermining the fundamentals of British society.
Same goes if you don't support taking away fundamental rights and freedoms like the freedom to wear what you want or the freedom to not be tortured by the state in the name of combatting radical Islam.
If you support gay marriage, you're undermining an ancient and vital pillar of society.
And God help you if you support Labour, of course.