The natives of America were isolated for multiple 1000s (over 10,000) of years, but they're still humans. Well, unless you were European at the time America was "discovered".
Honestly, if such a long time isn't enough to cause any actual, significant, noticeable changes between the Americans and Europeans, then why is it so absurd to hold the beliefs I do in regards to evolution?
Okay, I don't think that really proves macro evolution, but it's whatever.
Depends what you consider as 'long time'. Do you know how old the earth is(using dendrochronology, carbon dating, techs that have NOTHING to do with evolution)??
4.6 billion years. That's plenty of time for huge changes, especially when belayev basically demonstrated wolves turning into dogs in just 6 generations.
Also, its the most reasonable theory, since not even a single, authentic legitimate mammal fossil has ever been found in a geological strata in the pre Cambrian, or the Triassic or even until the end of the Jurassic eras.
Now before you reply to any of this, do some reading on the scientific literature, the books/articles written about this phenomenon by SCIENTISTS not creationists, then tell me why you as an individual object. If you cannot do that(and I doubt you will) kindly stop posting as this thread is about science and not religion.
Edit: and about your point about 1000 or 10000 years, well in that time they did differ. They didn't, for instance:
- have the Europeans immunity to measles, smallpox etc
-the African peoples sickle cell anaemia which makes them resistant to malaria.
That's pretty significant as a difference.