Christianity doesn't preach ignorance and hatred
Christianity doesn't preach the limiting of others rights
Christianity preaches to love thy neighbor and to respect others
Creates the laws in order to promote religious freedom for Christians
You're loving handicapped if you believe this isn't hypocritical what so ever.
I can say something bad about every group and every belief(this includes atheism. It wasn't religion that denied the couple pizza, it was a stubborn business who will cling to their beliefs. All of the bad things that happened in history weren't because of religion, they happened because of intolerant people of someone elses beliefs for not believing the same thing as them. People is the problem, not relgion. Unless a bible, quran, or tora magically flies through the air and smacks you in the face, then I think we can agree that these actions are the work of humans and not ideas.
Lots of business have signs saying they reserve the right to refuse business to anybody and in this day in age the double standards are ridiculous. If some jewish store owner refused service to a man because he was a white supremist, no one would care. If a black store owner refused service to a klans member, no one would care. If a SJW denied service to person for being a white male, no would care. If a jew denied service to a Palestinian, then their would be some protest. If some lgbt trans gender queer denied service to a straight couple, no one would care.
Is wrong for this restaurant to deny service to a gay wedding? Depends on your beliefs, but if you are offended then then you better be offended by the stuff other groups do. Double standards doesn't help anyone and only creates more ignorance which leads to more intolerance.