"... Whatever differences there are among the libertarians is less important to the pope than what they share, an inflated understanding of the autonomous self that distorts their anthropology and an outsized commitment to liberty at the expense of the common good. This whole discussion about the varieties of libertarianism is a dodge."

I find it very difficult to understand why a Christian (Catholic, Episcopalian, Baptist, or even Unitarian) could throw in with Libertarianism.  I have, for the past 40 years, seen it as a much worse philosophy than Communism as articulated by Marx and Engels (I'm not wild about them either).  At the heart of Communism, at its founding, there was sympathy for the plight of the worker.  As it evolved (via Lenin and Stalin) it didn't work out at all, but at least Communism grew out of a concern for others.  

In my opinion, the Church should spend as much time fighting Libertarianism as it did fighting Communism.