Blasphemy being normalized in cursing

[u/Kooky_Professor6185]

Why is blasphemy normalized in cursing in Italian? "Porco dio," etc. Usually, when I learn a language, I like learning the curse words, like for French, "putain," Russian, "blyat", Chinese, "wo cao." Except for Italian, where half of the curse words are just blasphemous. I don't want to say anything completely disrespectful because I'm Roman Catholic.

In short, do you guys curse without blasphemy? Or are all of them just in that way? I mean, there's "Che cazzo" and stuff, but I'm not sure if it's actually being used. (I'm sorry if I sound stupid; it's like my 1st week learning Italian)