katisara:
The flaw with your logic is that neither evolution nor any particular religion have been clearly 'proven' to be correct. It is still quite possible that in the near future we'll make a discovery which suggests a completely new method of development of species. You can argue there is an abundance of evidence supporting evolution, but as is the case with most scientific theories, that doesn't mean it's beyond reproof.
So we have B and C contradict each other, but neither one can absolutely prove itself. Instead, people have to weigh the evidence. Some people will weigh it and find C seems more reasonable, some will find B more reasonable. But you can't claim people are clearly deluding themselves to find B more reasonable. I daresay you haven't spent much time really exploring their evidence :)
Not sure if this was directed at me or Mr. Wiggles, but I responde anyway. ;)
I would agree that neither B nor C can absolutely prove themselves, and that some will look at the evidence available and conclude B is more likely and some will conclude that C is more likely. But I am proposing that the way they will reach that conclusion depends almost entirely on what they think about the truth of A.
This was sort of my original point. All the arguments about evolution are about details that never change anyone's mind (or almost never), because they're really not the reason people believe what they do. The vast, vast majority of people who don't believe in evolution feel it contradicts their religion. That's the absolute best way to predict what someone will think about evolution--ask them about their religious beliefs. Because they want to convince others who don't share their religious belief, they frame their disagreements with theory in terms of the evidence. But those don't tend to be the things that actually led to their views on evolution. They say "well, we've never seen a fly evolve into a spider!" but if tomorrow we turn around and show them just that, it won't change their mind. They just say "well, we've never seen a fly evolve into a horse!" They want to argue there because it makes it appear as if the disagreement is over the evidence, but really the core disagreement is the religious one. The thing that would change their mind about evolution would not be some science experiment, but rather some event that changed their theology.
To clarify, I'm not saying people are deluding themselves to believe that B is more reasonable. Like I said, their argument is logical and valid,
if you accept their assumptions. Because of that, I think it is the assumption that causes the disagreement, not the amount of evidence available. Any amount of evidence that didn't constitute an absolute proof (and science doesn't provide such) would fail to overcome the argument. Any finite chance that evolution isn't true, no matter how small, would leave their argument valid, and lead them to believe it's not true.
As an example (though not a perfect one), Heath didn't used to believe in human evolution. We argued a bit, looked at evidence, etc., and it didn't change his mind. What did eventually change his mind was a book by a christian geneticist, who talked not only about the evidence in favor of human evolution, but also the argument that human evolution was compatable with christian theology. I admit I'm putting words in Heath's mouth somewhat here, but the book that changed his mind on human evolution was as much a book about theology (or at least about religious beliefs) as it was about science. And I think those kinds of arguments, which dwell less on the evidence backing up evolution and more on how its possible to believe in evolution and not give up your religion, tend to change more peoples minds than pure evidence does.
As for the very last point, I'd wager I've spent more time going over pro-creationism and anti-evolution arguments than most people who are creationsist or IDers.