The UK doesn't even have a written Constitution, much less one with at least 4 amendments.

They have a government with 60% parliamentary seats on 42% of votes (theirs is a parliamentary constitutional monarchy, not a presidential system) who are not that far from Fascist and moving towards it (what's in this article is far from the worst liberty-curtailing things they've done) only the posh education of its members give them that special posh-sounding language accent (yeah, rich people have a different unique accent over there) and posh manners and language use that so dazzles some foreigners and a certain old and undereducated slice of the locals.

In the absence of a written Constituton and now that, having left the EU, they are not bound by treaty to be members of the European Convention Of Human Rights (which, by the way, was one of the very reasons some of the current government members stated for supporting Brexit), they're leading the country towards Fascism one step at a time (though they're too poshly educated to do something as unseemly as actually goose-stepping)