Answer:
In order to be scientifically acceptable any theory must make testable predictions. I wonder whether evolution theory makes any? The timescales of thousands of years for evolutionary and adaptive changes that are postulated in Darwinism, which would result in marked changes in the species, certainly renders any such prediction untestable in the foreseeable near future.
Explanation:
Silk was unavailable there, it was a Chinese secret, like gunpowder, and the horses wee considered better than theirs
Answer:
Remember that back then when the Europeans colonized America, the natives were often enslaved and often looked down upon. Social Darwinism kind of contributes to the issue. Like the African-Americans, they were considered 'colored' and endured persecution. I hope this helps :)