No, it's an element of socialism. And communism. And democratic socialism. And Social democracy. None of which are the same thing.
'Might'? America is the only Western country without it. There are plenty of examples around the world of universal healthcare working in an exemplary manner, and there has been for decades - it's certainly not new.
I don't know about you, but I generally find people don't loathe each other at all. Heck, the fact that voters in democracies voted for such systems in so many different countries across the globe says kind of the opposite. Bad life experiences on your part?
I think you need to relax and learn to recognise internet sarcasm.