You haven't raised a single valid issue, Non.
The Courts have long distinguished between churches (social institutions with the explicit goal of propagating a specific faith) and businesses (social institutions with the goal of making money by serving the public). There is no chance in hell that pastors will be forced to marry gay people if they are opposed to gay marriage. Nobody is forcing Christians to stop teaching bigotry.
All you've done, which is truly surprising due to the excellency that is your character, is flail wildly about trying to come up with a logically consistent reason why gays are not like blacks are not like Jews are not like women. You have categorically failed to do that. You have also failed to demonstrate the legal basis for your concerns, which again, don't exist.
This argument is shocking to us because it is a clear example of a progressive person deciding instead to wallow in self-righteous fear-mongering.