Right, the 'church' is one massive PR campaign after another. Just like the catholics and other religions, they've convinced hordes of people that, if only you will tithe 10% of your increase (and live the principles, blah blah), you will become worthy to enter the kingdom of heaven. They've got a 3-tiered heaven and you're supposed to seek the highest level.
No one is going to argue against their messages on family.
But when you get into deep doctrine and they talk about how you and your eternal companion can someday become gods of your own world...
I'm not saying that a devout mormon cannot be an effective leader, but I'm not willing to support anything which further increases their profile, because they've learned what politicians figured out long ago - that there are enough stupid people in this country to enable shrewd people to do almost whatever they want and to foot the bill for it.