The shortest definition of neoliberalism: trickle-down economics.
I wouldn't mind the self-flagellating left if they didn't insist on flagellating the leftists who focus on the right.
Politics are as divisive as religions because politics are religions. Noting that they're secular religions is just quibbling.
Why rich people shouldn't argue that the US's poor are better off than most of the world:
Because if that's your standard of good enough, there's no reason not to take from the rich until they live like the US's poor.
But I'll add that socialists want to raise the standard of living everywhere, so the rich should never be afraid that we will make them live as poorly as they make most people live now.