If it's a religious belief that the earth is 6000 years old, then I guess you're right, because that's just silly.
And I certainly don't reject the idea of relative truth in the fundamentalist Christian sense, dorkus, in fact I reject the idea of there being only one correct religion and all the others being wrong! What's more, everyone makes it all up as they go along - even fundamentalist Christians. We're all moral relativists.
There are many religious orientations, and one is absolutely not more "correct" than the others; it's all a matter of which one makes the most sense for your life - if any of them do.
We're talking about how man got here (I think), and you can be as religious or spiritual as you want and still believe in evolution.