text: Nope
  He can make the cake and Jesus will not think that he endorses homsexuals. Hate the sin, love the sinner, right?
  He could have used the opportunity to preach, maybe get the gays to repent. 
  "Here is your cake. Have you ever thought that you gays make God mad, by existing?"
  
  I can 100% guarantee that if he made a cake for a gay wedding, Jesus would not think that he is in favor of gays, gay weddings or anything gay or even remotely gay. 
  
  It really does not matter if Jesus knows the man did not want to serve the gays. 
  The Constitution does not grant you the right to not be offended.
  It also does not grant you the right to discriminate.
  
  He can just not make cakes for all weddings PROBLEM SOLVED