Implications of the uncertainty of inference of rate-based methods

If rate-based methods produce results in which we have no certain confidence, that undermines all radiometric dating methods, which undermines some claims about the age of the earth and its rocks. I would argue that the older that the rocks are claimed to be, the more opportunity that there has been for data-destroying processes to act, and therefore we have more uncertainty about the reliability of conclusions about the age of the rocks.