I never said it was Muttar, I said baking a cake for a toeivah marriage is not the same thing as baking a cake for an Avodah Zarah Event.
Its probably ok to bake the cake for the toeivah marriage , It is probably not OK to bake a cake for for an Avodah Zarah event.
It is against Halacha to make any money of Avodah Zarah.