Actually that’s completely legal.
Some of the other suggestions out there will open him to civil (make an ugly cake) or even criminal (bake Ex-Lax into the cake) suits.
But just saying that he’ll donate the profits to a charity that provides a service thats legal in all states but New Jersey? The only recourse to that is sputtering outrage. Which he’s already getting anyways.
But just saying that hell donate the profits to a charity that provides a service thats legal in all states but New Jersey?
...certain lawyers and judges could see extortion in that premise-the vendor has no standing to force customers what organizations to support with the money he expects to collect from them...