Yes I'm a Catholic and of course Mr Rosier knows. He says that religious prejudice between Catholics and Protestants in Ireland was one of the ways that muggles and blood traitors kept true wizards from working together.

All my cousins are purebloods so I'd say the Papist influence turned out to be a good thing wouldn't you? There are way more muggles running around loose over there. If my relatives hadn't had so many babies the wizards in Ireland would be in real trouble.

But even here in England its supposed to be a good thing for purebloods to have cartloads of babies!