no
There, that wasn't so difficult, was it?
You previously stated that you believe Christian business owners have no right to refuse service to anyone based on their (the Christians') moral beliefs. You were consistent in stating the same about Muslim businesses, at least Muslim bakeries.
Now, it is reasonable to conclude that the homosexual baker is morally opposed to the Westboro Baptist Church's religious beliefs. It is also reasonable to conclude that the Christian pizza people in Indiana are morally opposed to participating in a homosexual wedding (or wedding reception).
So, why do you believe the homosexual's moral opposition is a valid reason to discriminate, but the Christians' is not?