[jec41]

But if the earth is proven young

No, I don't accept ifs. To predicate a statement with if is presupposing that everything is possible, nothing is possible, nothing is true, everything is true, the evidence exists, and no evidence exists. A false supposition based on one's opinion.

[Havoc]

If one assumes that 14c levels are constant. If one assumes radioactive decay rates are constant. If one assumes...

If I may be so bold, It isn't "if" that you don't like. It's the assumptive you don't like. "If" is fine if you like the assumptive. You're a closed minded idealogue - nothing more or less.