Yes, we need to stop the mass-discrimination of those wedding cake and florist mega-conglomerates.
Once their reign of terror is over, then we take on those no shirt, no shoes, no service fascists who have been holding down the hippies far too long.
Let's take it one further, if you're a creative person, an artist in the case of these professions, you care very seriously what you attach your name too. For a creative person, a job is not just a profession, but an expression of self that cannot just be sold for any project they don't feel good about doing. Are you really going to say that the desire of someone who wants something created for them trumps their artistic freedom? Because it is not just the product but that artist's heart and soul you are buying.
So not only should this "anti discrimination" offend Christians, it should offend any artist that wouldn't want to be subjected to force to create a work of art that they don't want to create.
You seem to be caught in the old philosophy of "equal access", but no one is denying anyone's ability to buy cake or flowers, they're preserving their right to be an artist who stands by their work (well okay, in this instance of course religious belief is the key factor, but that doesn't make it any less despicable to force them to be a creative slave for a project they don't want any part of).