It's obvious, that you don't know anything at all about this topic. So, before you decide to laugh at those who do, take a look at the old GGG threads and learn about the EUROPEAN remains, which are far older than any Indian one, that have been found in the Americas. Or ask blam and Sunken Civ to help you out with links and info.
Your scenario is a theory, not a fact. The theory is very interesting and it sounds possible to me although I've never seen hard evidence that it is true. I honestly thought you were joking because of the way you phrased your post. I am left to conclude that you are actually angry about these hypothetical Europeans being killed by prehistoric Indians. Maybe all of us European-Americans should sue the Indian tribes for repairations.