Did Geography Doom the Native Americans?

The Americas are a fantastic pair of continents. But not the best for civilization building and competing with Eurasia. Which means, was the geography itself the downfall of the native americans? If so, what were the reasons why? ___________ Facebook: https://www.facebook.com/geographyhub Twitter: https://twitter.com/GeographyHub Music by: Soundbar: https://www.youtube.com/channel/UCLVW-EXBdqERrqHlTZwBSQA Sam Kuzel: www.soundcloud.com/samkuzel New channel Izz.