When my old man went to Warwick University (old man is a Labour voter)
It certainly didn't sound like a well balanced place for reason and debate .
You either thought the same as they did or you were on your way off the course
It's very left wing
From my own experience I'd agree about uni not being a place for debate. On my course attempts to question what was being taught weren't welcomed or dismissed as you not being as clever as them. Plus as the lecturers were responsible for marking papers/work etc if you wanted to get a decent mark you had to basically agree with the way they thought. Some of the stuff I was questioning has since been debunked, like trickle-down economics.
I felt I was far more able to question stuff at GCSE and A level and differ from the norm but still get a decent mark as long as you could argue your point well. I didn't feel I got that at uni, which was disappointing.
But as I alluded too my degree was economics/accounts based and so the thinking behind it was not left wing at all.
Also look at a lot of people in the govt with degrees from unis. Johnson, JRM, Sunak, Cameron etc. Hardly left wing are they? I doubt those going to places like LSE are hotbeds of lefties.
So while I reckon there is probably a heavily entrenched mindset in certain areas that would be very left wing, I reckon there's just as many with entrenched right wing. It just depends on which area you're studying.