How is religious dogma unsubstantiated? Belief may be questionable but the rules and precepts of a religion are what they are, they are the rules some people live by and that's all there is to it.
Marriage is a legal definition not especially a religious one, I couldn't give a **** if gays get married, good for them. But to try to force religions and people to put aside their rules to enable them to marry in their institutions is wrong. Should you be able to force a vegan restaurant to serve you a bloody steak?
just bake the cake or we will ruin you
also you're a pedo and child sex enabler