The Federal government isn't all of the United States
My home stage, California, is physcially and economicaly on a par with the UK. The US itself is quite diverse with states like ours being quite 'normal' compared to the outer reaches of what are sometimes termed 'the flyover states'. Unfortuantely, the way that the political system is set up means that a relative minority of the population gets to choose the Federal government; that minority is entrenched in the GoP dominated 'red' states and sytematic attacks on the electoral system has entrenched it, making it very difficult to dislodge.
To give you some idea of the scale of the problem, Trump became the President due to a majority of 50,000 votes in three states. Overall the vote count, the so-called popular vote, gave Hilary Clinton a win by over three million votes. This is bad enough but then the process of packing the courts wiith unqualified but idologically sound judges has proceeded apace and the GoP dominated Senate has blocked any attempt by the House to exercise oversight. Its a nasty situation. But then things aren't any better in the UK. The system is skewed, its not really democratic (you get to vote for one MP every five years)(Whoopee!). There isn't even the semblance of Constitutional protections and a Bill of Rights in the UK, ther's just custom and practice, a process that's favored a small ruling elite since 1066. The only thing to be said in the UK's favor is that shorn of Empire its now a small, relatively ineffectual state that can't do the kind of global scale damage that our government can do.
British democracy died in the 1980s when a truculent (Labour) GLC was summarily replaced (before an election, no less) by 'managers' selected by the central governemtn from outlying (Conservative) councils. Say what you will about the US, if you tried to pull that stunt here you'd be tied up in the courts for years. Its something our Dear Leader has yet to understand -- he ducked or flunked his civics classes at high school so hasn't a clue what a President can and cannot do. He only gets away with what he does because a bunch of GoP politicians enable him -- they recognize a useful idiot when they see one.