How often have you left the USA?
This is no diss on anyone here, but most that are convinced there nation stands head and shoulders above the rest in standard of living have usually barely traveled. Even traveling to like 10 nations hardly helps, and some haven't even done that. It's not just an American thing, I've heard Australians, Brits, French, Mine and other rich islands here insist it. Normally they've never left their country and have zero clue. I've heard so many say daft things like their nation is best as they get a pension - FFS all developed nations do that
All the first world is fab, offers great standard of living, just with differences. The free health in UK is great, US better weather. Free health and low crime in Oz is great, but US so much cheaper it's not a joke. We're tax free so economically it's great, but US/UK/Oz kill us on amenities. I could go on. Comes to preference really, and all 1st world people are lucky not to be in 2nd or 3rd and should not complain like Tox said.