Whether you are Presbyterian, Episcopalian, or Methodist, all you have to do to register your complaint is to quit giving money to these renegade churches.
The same holds true for universities. As long as the money keeps flowing into the coffers, these churches and universities think that they have free reign to do anything they dang well please.
Cut off the cash, and when they squeal, tell them why you did it. You'll be surprised how quickly they'll quit playing their little PC games when they have no money in the bank.
Welcome to the PCA. We've been here 16 years, and have been thankful ever since for a denomination firmly rooted in the Bible.