[happiness_idx]

>I bet the disabled US vets, homeless people or McDonalds workers in the states

Those two groups share interesecting means by which their healthcare is provided. Surprise! Its the government. So when people have doubts about an implementation of "Universal Healthcare" you shouldn't be surprised when you can acknowledge that as you said " but would probably feel a bit cheated learning that despite living and paying taxes in the richest country in the world, their peers in poorer EU countries get much more benefits and better quality of life."

Irrelevent but homeless people don't really pay taxes in any meaningful sense.