But the problem is, internationalist Democrats are not the whole story of the US. There's another faction, one which our allies used to be able to work with. But that half of our nation's politics has been on a long, ugly moral slide. We are imposing ridiculous and destructive tariffs based on the personal grievances of one man. But a duly-elected Congress absolutely refuses to stop him. We are still covering up massive amounts of information about pedophiles in positions of power, but Congress hasn't done more than hold a vote and refuse to follow up. And we now have masked Federal police just murdering people in our streets for peacefully exercising their 1st and 2nd amendment rights, but a significant minority of voters are still cheering it on. If the moral trajectory sinks much lower, I'm not sure there would be any sins left to commit except public devil worship.
So no, you really can't trust the United States. Not because nobody here understands honor, alliances, or even practical business. But because that's not the whole story of the United States right now. We can't even get the Epstein files released. Which, admittedly doesn't affect you much. But it's clear sign of who we're becoming, and what a critical mass of our voters will ultimately accept.
The UK seems a lost cause though, even under Starmer it has been far more appeasing than any (West-)EU country. And as right-wing as Starmer is, your next PM will inevitably be even moreso and more buddy-buddy with the US. Perhaps even a personal friend of MAGA.