Just Ask A Brit! and then delete her answer
Anyway, said post contained the line If you think it can’t happen, ask someone who lives in the United Kingdom or elsewhere. They’ll set you straight on that, and quickly.
So I commented saying yes, please do ask someone who lives in the UK! I'm one! And what d'you know, it seems they deleted my comment. It's possible it's some kind of auto-mod, although the comment showed up earlier and had no links or swearies in. Their blog, their rules an'all that, so I thought I might as well put what I can remember of my answer here, with extra ranting:
Contrary to popular American belief, NHS hospitals do not look like this.
I can tell you dozens of stories of fat friendsandrelations (and myself - I think I'm currently "overweight" by BMI) getting excellent, prompt treatment on the NHS. I've never known anyone be denied treatment on the basis of weight, although I've heard about it on the news occasionally regarding knee replacements. (Of course, US insurance companies often deny treatment to fat people too. And I'm sure there's as much prejudice here as anywhere.)
I've lived in the US (with good insurance), so I know both systems a bit. I've never known anyone who's lived under both systems who prefers the US one - an impression borne out by the comments here.
And to those of us who grew up outside the US, your system with its 22000 preventable deaths a year and its bankruptcies and its get-cancer-lose-your-house and its I've-spilt-a-chip-pan-down-myself-but-I-can't-afford-to-go-to-the-hospital and its "you're a biologist, do you think my kidney pain might be something serious?" looks utterly, criminally insane.
Well, you did ask.