YANBU to want the US and UK bases closed. Many people do. Many people don't. It's been a debate going on for decades with good points on both sides. I support them closing, but also agree with those that there are greater priorities.
I personally am far more concerned about digital autonomy and other more daily life things than military autonomy. With the US threatening again to leave NATO, I think the UK should ally more with other NATO countries rather than the US, but we need to ally and that at times means military bases. I entirely support countries that want to disconnect from the US - or the UK - but militarily, I'd rather countries focused on allies than all countries trying to rearm in isolation. As others said, that only benefits those selling arms.
YABU to go on about 'who elected the US the world's policeman...' and not showing recognition that the reason those bases are there because the governments of those countries - including the UK when it comes to the US - have given some of their military and other infrastructure to manage to others for various very solid reasons particularly during the Cold War when most of those bases were established and those governments, elected or not, are the ones who decided whether to do so. There are benefits and risks in all of this to be considered. The UK has done this with the US not only with some military infrastructure, but also significant chunks of our digital infrastructure. That's the reason the UK is having to walk such a tight line right now with the US - our government has no digital autonomy separate from the US, there is no current public plan to build such autonomy unlike countries like Spain who've been able to be more bold against the US, and that is why we and some other countries are struggling with managing the situationship with the US. Even with what's going on, the Met Police have just agreed a significant contract to a US company to manage large parts of their digital infrastructure, meaning that structure is under US law and governments. That's a bigger concern for me than bases - even militarily, with concerns around growing cyberwarfare, having our digital infrastructure with the US is a high risk move.
I also think YABVU if your issue with US and UK bases is about Trump. Trump isn't the first the American president to be judge, jury, and executioner, he's just the latest and loudest. What he's done has been built up over decades by previous Presidents. Yes, he's done a lot of horrible things - and none of them are things that haven't been going on by the US and at times the UK for decades. Biden, Obama, W Bush, Clinton, H W Bush, Reagan and beyond - all of them have expanded the power of the US government and the US Presidency and perpetuated control, violence and death around the globe. The situation in Iran goes back to the US and UK getting involved in it back in the 50s and how our governments handled the situation back in the 70s. Trump is far more public about it than most presidents, but he hasn't changed the US playbook that much. Any decision on things like military bases need to look far beyond Trump's presidency.