the Constitution has a separation of church and state. Any law that is based solely on religion would and can be challenged and would be ruled unconstitutional. Laws are setup to maintain order in a society, laws can be changed and many should. That we why we elect law makers. You assume that no one who isn't religious could not be elected. Wrong but it doesn't hurt I agree. However there are many members of congress that have varied faiths or no faith at all ... there are many gay people in congress also. The gay marriage stuff someday will be challenged up to the Supreme court and then it will be settled. I know lots of people who are opposed not because of their religion or lack their of , but because they are bigots period and hate gay people. And it is very sad also.