As a Christian conservative it boggles my mind how serving anyone who is gay affects my relationship with my God. I rub shoulders with all manner of people everyday... Some are gay, bigots, adulterers, liers, haters, etc...
If having to serve those who do not adhere to Christian principles affects you that much. Then It seems the only way to have a relationship with God would be to stop going outside.
Also a Christian conservative and I agree with your post. However, I think this is more about freedom and liberty than anything else.
Does anyone have the right to deny service if said service violates their faith?
Example: Would a Muslim baker have the right to refuse service to a patron asking them to bake a cake for their "Hog Hunting" group and that they make the cake using bacon drippings and to sprinkle fried ham on the top?
Yes, I admit, that is an exaggerated example, but touching the pig would violate their religion and they should have the freedom to exercise their right to refuse service to that patron on those grounds.