... Or Would Their Heads Just Explode?

Really, why is it that Ray, et. al. are so invested in "disproving" the Theory of Evolution? I think it was ethan who recently said that if evolution were true, then all is meaningless and he'd have no other choice but to go out, burn down a Starbucks, rape his dog, and then set himself on fire. Well, he didn't use exactly those words, but the general idea is that if we human beings are related to the rest of life on this planet, then we're no longer special and there are no moral standards.

Is that what it comes down to -- if we're related to chimps then life is meaningless? Would the fundies have no other foundation for their faith if they ever accepted the powerful explanatory power of common descent and modification by natural selection?