Okay, I know that this is going to be a contentious issue with Americans, so listen up. There's a reason why I would never ever move the the US, and that is because you don't have free universal healthcare. I've lived in the UK all my life, which means I have had great free healthcare all my life, and I wouldn't change it for anything. Seriously, that puts the US below every other country in the western world (because WE ALL HAVE IT EXCEPT YOU). I wouldn't feel safe with my health in the hands of either some insurance company whose bottom line is about profit, not helping people, and who will do whatever they can to screw me out of the money, or doctors who're so mercenary they'll perform unneccesary tests (If your doctor gives you a CT scan and not an MRI scan, or both, HE'S A QUACK) just to drive your bill up and cash in.
I don't care about the taxes. I don't care about big government (Which, by the way, is kinda underrated). Because I pay £7 for any medication I need. I get to see a doctor in any hospital (no in-network crap here) and get seen, and then I can walk out and not have to sell my car in order to pay for it, or worry about insurance premiums. That is worth all the stuff you've been told are downsides.