The left will do anything they can to silence freedom of speech and expression.
Political correctness was first widely adopted in Nazi Germany, one of the many things the left have took from that era.
How to beat it? I would like to say hope, but that will never work. For countries like the UK you need to accept the left have won and they have got their Utopia. There is nothing we can do.
Universities are terrible so don't think they will change. There is a reason the turnout at uni elections are in the single digits, no one cares. The iSoc and left wing societies put their people in power and they play child politics with the university. It's nothing to worry about