What if these LGBT consumers consider themselves christian?

Hell, there are christian denominations that preside over gay weddings.

It's only the radical fundamentalist christians that are putting up a fuss about it

You don't think EVERY muslim is willing to blow themselves up in the marketplace do you?

Perhaps these couples aren't choosing muslim bakeries because they consider themselves to be christian

There are tons of people on this site alone that consider themselves christian, although their behavior and words betray their souls to those paying attention - kind of like the way they perceive being homosexual and christian to be mutually exclusive, many people perceive being full of hate and being christian to be mutually exclusive - I would imagine maybe 1% of them would frequent what they perceived to be a muslim business for anything - particularly for anything related to something as personally spiritual as a wedding.