It’s significant that other scientific theories don’t require that kind of protection from the marketplace of ideas.The economics analogy strikes me as very pointed. The evolutionists have not been able to convince people that they are right so they want the government to force their viewpoint on everyone. It's intellectual protectionism; special pleading for the followers of Darwin.
If they have so much evidence behind their theory, why can't they convince everyone? Don't tell me that it's just stupid or uneducated people that they haven't convinced because that is not true. And don't tell me that it's because religion blinds people to the truth; that begs the question. If the religion is more persuasive than the theory of evolution, then what is the government doing taking sides?
And it isn't true that everyone who doubts evolution does so because it contradicts the Bible. There are plenty of people who would be willing to accept a reading of Genesis that is consistent with evolution but who think that the evidence for evolution is just not persuasive. I'm one of them. In fact, if you take out all of the people who believe in evolution just because it's what they were taught all their lives, and people who believe in evolution just because, for reasons that are essentially religious, they can't accept any alternative, then I'm not sure that evolution has convinced even a majority.