I am religious and if the baker did what he did based on Christianity then his position is hypocritical at best. Id be willing to bet he has never turned away a heterosexual couple who had sex before their wedding day in his entire career. Where this case gets sticky is...does the government have a right to make you be a part of something you don't believe matches up with your moral code. People have typed a lot of words but nobody has shown me anything that would prevent a Jewish Baker from having to do business with a Nazi sympathizer or a Black baker from doing Business with someone who really loves the KKK. 
The Little Guy