Hmm, that's strange. I was born and raised by a very conservative Catholic family in Piracicaba/SP -> Juazeiro do Norte/CE -> Piracicaba/SP. I used to be a rocker weirdo that was often scolded by the local community due to my shirts. Catechism classes were a disaster, even that devil woman silhouette with a pointing tail was criticized.

Anyway, even if my experience is actually an exception and even if those conservative Christian people are minorities, would it be ok to offend them?

I mean, I absolutely don't care. But, now that we're revisiting everything to be as political correct as possible, couldn't we change a picture - that is offensive to a minority - to something else?