I don't think that has anything to do with it. The UK is not at all normal socially though.
It's a very strange country, what its lack of respect for freedom of speech etcetera. It's been formalizing its authoritarian excesses and made them normal, and I get the impression that the British have gotten used to it and accept it as the way things should be.
I can't read Hungarian or Polish, so maybe I don't see these things, but I don't feel that Poles or Hungarians have internalized a view that they can't say what they mean in the way that I feel that the Brits have, so while you may be intending some kind of irony in your remark, Britain may in fact be the most backwards country, socially, in Europe.
The Brits seem to feel that punishment of people who are in the way, or inconvenient, or challenging the state is legitimate.