Really, it's just Keynesianism done right: high tax rates with the money being used to make life as good for all members of society as society can reasonably afford. What's so difficult?
I have reluctantly concluded that here in the U.S. the fundamental difficulty is that the overwhelming majority of 'the people' represent the DNA of the dregs of Europe's population. Their 'cultural norms' include the preposterous notion that this bunch of mentally misshapen miscreants are the apotheosis of individual human beings, for whom "society" is a concept that only people who are weak in mind, body, and spirit would recognize.