Political Correctness is an abused and sometimes dirty term that has caused us to neuter our speech to make it less offensive to feminist, it has also made it entirely unfashionable to presume your beliefs are correct and another's are not. Political Correctness loves relativism, relativism loves political correctness.

Generally, the standards of P.C. strongly forbid the mocking of another's religion, it is very wrong to assume that worshiping a houseplant or a pretty rock is not in fact truth, for that individual, in the way that they themselves define truth, for their individual life. The same rule that covers the tree-huggers and pretty-rock worshipers also extends to other major religions, Judaism, Islam, Buddhism. That is of course so long as we are not talking about Christianity, no that one doesn't fall under the rules, precisely because those Christians just don't believe in people defining their own truth. And so we have this news story (warning: it has an upsetting and unholy image) Museum Defies Pope Over Crucified Frog.
This isn't about the Pope, this isn't about the Holy Roman Catholic Church, this is about a commonly held belief that is is gravely wrong to mock another's God. The Christians, are still being persecuted. May God strengthen and defend us.