Libertarianism takes many forms, not all of which are inconsistent with Catholicism.  The economic libertarianism that puts the rich in the place of goverment, but with no accountability to anyone (including the workers) is very much against Christianity. Social libertarianism which is pure license is not compatible, but it is if it affirms human dignity and the individual’s right to not only deal with her own moral situations, but also to decide what’s moral. The governmental libertarianism which encourages the Church to take on social functions is very much consistent with Christianity. Social solidarity in unionism is how you deal with economic libertarianism. It is also how we get things like gay marriage recognized - including in the Church at some point (with input from more accepting sects).

The ageda of the conference and its focus on consumer capitalism is interesting, although it is missing a discussion of consumerism as a substitute for worker empowerment in the workplace.