I hear this often, but somehow precise objections never come up. What exactly is wrong with what he's proposing? Why would a socio-economically heterogenious

I hear this often, but somehow precise objections never come up. What exactly is wrong with what he's proposing? Why would a socio-economically heterogenious country with a population of 350M not benefit from public health insurance and welfare? What makes it such that, in principle, these social plans could not be applied in a manner sympathetic to the political and social organization of the US (e.g. by delegating implementation details to states and municipalities)? The US has very real and tangible problems with healthcare and the lack of a social safety net, yet a significant portion of Americans insist on brushing off advice from cultures that have all but solved these problems. To conclude with an analogy in a similar vein as yours, this is like watching a minimum-wage earner blowing his money on a luxury car, plasma-screen TV, XBOX and weed, and subsequently complaining that he's stuck in a rut. And when concerned, well-to-do neighbors offer friendly advice, he responds with the equivalent of "buzz off, your situation is different than mine". Yes. That's the point. Their situation is different and they know something about how to get there.