Please introduce some evidence of your own. Waving your hands and saying "its throughout the literature" is not a reference or evidence.
My statement was:
Those are your words... and yes they are silly. Weathering is an established method of dating rock and ruins.
There is plenty of evidence of humans inhabiting North America before 15,000 years ago. Take the Blue Fish Caves in Canada's Yukon Territory for example:
At the risk of being even more boring I need to see references and links to your sources for these numbers and conclusions.