Are they right to deny a cake to child Named Adolf Hitler?

I would not make the cake. The parents say they are offended that people did not make the cake with Adolf Hitler on it, but they shouldn't have named their kid that. He is going to be traumatized when he gets older, and the parents should know that it's not worth that just to prove your point. When you name your child Adolf Hitler people are going to get offended, and if they can't deal with that they should not have named their kid that in the first place!