i confirm it! we use a lot of swear words connected with religion.
we usually have 4 kinds of swear words:
1. random curses: merda (shit) cazzo (dick) porca puttana (dirty slut)
2. catholic curses: porcoddio (swine god) madonna puttana (madonna the slut) etc
3. multietnical religious curses: cane d'allah (dog of allah) cazzo di buddha (buddha's dick)
4. poetic periphrasis: maledetto l'inquilino della croce (damn the cross' tenant = chirst)
i can proudly say that we are very artistic when it comes to swear words
usually religious persons don't swear too much, they try to not do it, or do it the lesser they can, but you know, it has become something that nearly everyone does.
a particular mention goes to my region, tuscany, when swear word have become a sort of art! we have been elected the most artistic folk in italy in creating new swear words, some are realy complicate and composite
it has become a sort of verbal tic, so we can put 2-3 curses into the same phrase, and no one will be surprise or scandalized
and a pretty signicant example is that the 2 only people who were chased away from the italian big brother (a program were there are no actors and no particullary learned person, where people usually behaves like at home, with a dialectal speaking and such) were both tuscans and they both have sweared in live broadcoast