What is the YEC answer to the lack of shorter lived isotopes?

You say that god is consistant in what he does and thereby all things god creates are in a mature state. That sentence says absolutly nothing. What is a mature state? Is a mountain a mature state? Or a beach ? Mountains eventually erodes to beaches, and beaches becomes sandstone and finally mountains. Same goes with every other aspect in nature. Everything is recycled. It even goes for you. What was to become the first parts of you were food your mother and father ate some long time ago.
If god is consistant, then your view of the age of universe seems a bit un-consistant, doesn't it ?