"Economic growth results from producing more goods and services (not from redistributing existing income)"
This article is an excellent compendium of virtually every argument I've ever had with a liberal. Arguments that inevitably end with accusations that I'm either heartless, greedy, racist, or ignorant.
I'm convinced that either Conservatives have some genetic predisposition toward fiscal comprehension, or liberals have an innate perception of economics analogous to abstract art or a hallucinogenic trip.
Margaret Thatcher once said something along the lines of, "To get your policies right, you first have to get your understanding of human nature right."
In my view, that goes a long way toward explaining why liberals cannot accept economic facts. (Or other realities.)