The march of the moral twits

I keep seeing these appalling stories written by Christianists. They seem to have two themes:

1. America is 90% Christian (their figure) and therefore the country should be governed by Christian morals and rules; and

2. Only Christians understand morality because the only morals humans can know are the rules set down by god on stone tablets and burnt toast and whatnot. No one else knows a thing about morality. In fact, it is literally impossible for a non-Christian to be moral. Without god's Special Rules and Decoder Ring, we would be killing, raping and stealing 24/7.