I looked up the National Party for Ireland website. Of the nine principles listed, there was nothing said about religion. Rather, it said that the National party is founded on [...].. individual personal freedom, rights and responsibilities.
Rather than being based on the Catholic faith, it seems to be based on personal freedom, which can mean whatever makes one happy.
Though there are some good principles to the party platform, without a religious base, it seems open to interpretation as to what "individual personal freedom" means, right?