This guy is making it up as he goes along and calls it research and gets a government grant to print copies with a barrel of ink.
Learn how to read, then pratice what you have learned. The appalling ignorance that has been evident on this thread is most unlike Free Republic, and stands in stark contrast to the many threads that have dealt intelligently with this subject over the past year or so.
There is no reason to feel guilty about whathappened. It was the naural and inevitable consequence of contact, and was preordained to happen. That is unless Europe and Asia were to be forever quarantined from the Americas.
Native Americans were simply too genetically uniform to be able to survive a widespread and lethal contagion.
Was that Columbus' fault?
If it hadn't have been Columbus, it would have been someone else, or do you think that America might have remained undiscovered right up to the present day?