It isn't if it is taught right. I still have a text from the 1970s by Leo Rosten (a Jewish guy, but a fair one) which is excellent and scholarly.
Look him up. He would be run out of any PC classroom today precisely because he is fair and scholarly in his approach which consists mainly of asking leaders in the various brands of religion the same set of questions and sometimes probing further when he smells BS.
You forget impimp’s axiom #43 on government initiatives - any government program that is a good idea IF it is done the right way will eventually be only done the wrong way and lead to the long-term loss of liberty.