It's not like the baker has a "Cakerator 5000" in the back where he just has to push a button and a wedding cake pops out. The baker in the 'famous' case, the one that went to the US Supreme court, he made custom cakes. Each one was a unique creation requiring his artistic talents.

Art is a form of speech. And in a country with free speech, you can't MAKE someone say something. You can't make someone create art.

You can't compel speech. That's not something you can do in a free country.

That's why, in the case of the Christian baker, the courts ruled in favor of the baker.

The christian baker will sell birthday cakes to gays. So it's not like he's against gays. He's just against gay marriage. You don't have to agree with him. But he is allowed to believe whatever he likes. And no one should have the power to force him to say otherwise.