Patrick, did you read Mr. Philips essay? He clearly states, more than once, that he is willing to serve anyone.

"There is no policy at my shop, real or imagined, that says, “We don’t sell cakes to homosexuals.” I’ll sell anyone any cake I’ve got. But I won’t design a cake that promotes something that conflicts with the Bible’s teachings."

This is not about how Mr. Philips feels about the people who walk into his shop or even about whether he endorses their way of life. This is about him being unable to use his artistic talents in good conscience to promote or celebrate something that he believes is wrong.  It's very telling that every single argument I've read against Mr. Philips begins with an inability or refusal to even acknowledge this distinction.