I can certainly say as a printer that I do not offer porn as a product. That is not discrimination based on race, gender, religion or sexual preference. It's my company policy. You cannot demand that I sell a product I don't offer. A bakery that sells wedding cakes, sells wedding cakes. They have every right to tell me that they won't make a penis shaped cake if they don't offer that. They cannot however refuse to sell me cake #23 from their catalog on the grounds that it's for a gay wedding. That is discrimination. It is in no way the same.
I don't believe pornography is a protected class, so that is a non-issue. Let us not move away from what the actual scenario is. A customer wants you to put up a billboard, which is the service you provide, stating that homosexuality is an abomination in the eyes of God. That is an expression of religious belief and religion is a protected class. The Oregon law prohibits your refusing taking on that job because you don't like the message.
I don't know if you are dumb, willfully ignorant or just dishonest. The law this couple broke has nothing to do with the product they provide. They are entitled to control their product. What they CANNOT do is refuse to sell to a segment of the community. This couple violated antidiscrimination laws by stating that they will NOT sell their product to gay people because it goes against their religious beliefs. The state does not recognize their religious beliefs as a valid argument to discriminate against a certain segment of the population. Do you get it yet?
Your understanding of the law is non-existent.
Obviously that would be yourself. You are completely misrepresenting the law. It has no bearing on your product. The fact is that this couple violated anti-discrimination laws in their community. As business owners, they should have been aware that you cannot do what they did. It is their own fault they are stupid business people. Their religious freedoms end when they violate another groups civil rights. These laws have been in effect for SOME time now. Ignorance is no excuse.
That law is invalid, because it violates the GOD-GIVEN RIGHTS OF THE INDIVIDUAL.
That the municipality is enforcing such, merely denotes the invalid nature of that government.
Your defense of that invalid law and the government which wields it, denotes the invalid nature of your reasoning.
Invalid reasoning is disqualified from consideration by reasonable people, because the construct of the reasoning identifies it as fatally flawed reasoning.
Despite knowing that it cannot, due to the fatally flawed nature of your reasoning, I remain hopeful that that will help, even if only in some small way.