I think to the contrary that Brits, an Europeans in general are vastly more sensitive to the threat of nazi-style or communist-like government - and corporate -

I think to the contrary that Brits, an Europeans in general are vastly more sensitive to the threat of nazi-style or communist-like government - and corporate - oppression than Americans who are, by and large, complacent on this topic despite all the anti-government rhetoric you hear. As a result governments can't get away with as much because people watch closely. Combine this with the greater sense that the government runs the provision of critical services like healthcare and people have a better relationship with their government so fight over what matters, and there tends to be a good sense of what that is. Also the British political system is far more responsive to the electorate than is the US system which famously has less churn among elected officials than the old soviet politburo. This means that the electorate has more confidence in its ability to effect change.