Southern conservative churches are the only thing saving methodists right now. The problem is that the liberals want to refer to the man-made book of doctrine or whatever they call it, instead of going to the Bible for their doctrine.
I had a conversation with one of the more conservative members of my church about 6 months ago. She is not happy with some of the positions of the Methodist church either. Her feeling was that most of the other mainline churches are just as bad or worse. So, she has hung in there.
I just don't know if things can be changed. The big debate over homosexuality at the last conference was fairly telling. Some people wanted to break then but supposedly "cooler heads prevailed." I see another try at happening again soon.