In more than one verse in the Bible we are told not to argue with fools. So, yes, the church should split so that the fools who argue against God's word by promoting homosexuality do not run the entire "church." Then the followers of Christ can continue with their Christian, believing, church and not have to argue about ut.
Do not throw your pearls before swine, or give what is holy to dogs... It's refreshing to see the Episcopalians finally saying "Enough!"; forty years and their finally getting a wake up call!