Faith in Christ leads you to love your neighbor as yourself, live at peace with all men to the best of your ability, care for those who cannot care for themselves, and keep yourself pure.
When Christians collectively get involved with politics it is only because they want the world to reflect their beliefs. The only legitimate method a Christian has to enforce morality on another person is, by example and testimony, to change the heart and mind of a non believer.
Ignorant Christians, like any other group, cannot tell the difference between, "I think things should be this way" and "There should be a law that things are this way."
Ignorant Christians vote for vice laws because they think such things are bad. They think people shouldn't hire hookers, get stoned, and watch porn. The real solution is to change the heart, but instead they just enforce it at the barrel of the gun. They love big brother.
Ignorant Mom's vote for Internet regulation because they don't understand the internet, and assume it is full of child molestors who can play a magic tune to kidnap kids. The real solution is to watch your kids, but they run to big brother.
Ignorant Enviornmentalists vote for environmental protection laws because they think that every bird is sacred. Well who knows, maybe they are. Change people's minds, don't call the po po everytime a family wants to build a tree house.
I could go on...
My point is this. Special interest groups stopped trying to change our minds and started trying to change our laws. This leads to division and anger. Usually there is a big chunk of cash behind these movements too. Politicians cater to the whims of these groups because it gets them elected.
When we learn to love our freedom, more than we hate everyone else s freedom, then we will have liberty.