This is a bull$%#@ argument right from the start.
Go ahead and google "Christian Bakery" and tell me how many pages you have to sort through before you find a website for a Christian Bakery.
Go ahead and look through the yellow pages - I don't care what city you search - and provide me a listing for a "Christian Bakery".
I'll wait.
This entire issue is ginned up by people who are searching for family owned, mom & pop bakeries who are unused to and uncomfortable with the idea of involving themselves in gay weddings and the lifestyle in general, and once they find one they run to the press, screaming "bigotry and oppression" all the way. Everybody knows this, but people who argue your point of view pretend not to. You may not have a problem with gay weddings, I don't have a problem with them, but some people DO NOT WISH TO BE INVOLVED, and should not be coerced into it. Period.
People who take your position are either being duped or are willing participants in deception.