The odd comments of many bishops to the contrary notwithstanding, socialism, homosexuality, and abortion are anathema to the Catholic faith. Conservatives in general, and particularly Protestant conservatives, must learn to make the case that voting for conservative candidates and conservative issues is the authentically Catholic thing to do.
Big government and a paternalistic state have gone hand and hand everywhere Catholicism has dominated. The Free Market is not a core part of the Romanist ethos.