Well, there's a lot more to being a poor white dude from West Virginia than "socioeconomic disadvantages". They are, in fact, a racial subgroup that get's discriminated against.
LOL can you imagine if the South Park writers made a Broadway play mocking Muhammad?
I can only imagine all of the openminded liberal attendees laughing at all of the mockery like they laugh at the mockery of the Mormon religion.
The current chattering class views on race are fucking sick.
Also, it appears that the overwhelming reaction to the musical is that it's not mockery. https://en.wikipedia.org/wiki/The_Book_of_Mormon_(musical)#L...
Edit: And about Mormon reaction to the musical. That's just evidence for their coolness :) I mean, can you imagine the reaction to the Islamic equivalent?
In Joe Abercrombie's First Law trilogy, there's an Islam-like religion. Its prophet is a cannibal ;) I doubt that'll ever make it to HBO.