The Piketty Panic:

what’s really new about “Capital” is the way it demolishes that most cherished of conservative myths, the insistence that we’re living in a meritocracy in which great wealth is earned and deserved.

In the warped little minds of the hard right, the real problem isn’t capitalism (which they redefine as needed) but crony capitalism (which they also redefine as needed) where the very wealthy use the state to steal wealth. But we also can’t tax those people because that’s theft and will reduce the incentive for them to work hard. And pointing out the contradiction is Marxism.