American Indians appear to have arrived in the new world from both Europe & China.
There may have been some migrations - but it's still 'theory' -
But it APPEARS there were people here all along.
We have that blind, superior mentality that still persists - if "we" in the old world didn't know there were people here until a few hundred years ago - they MUST have some from elsewhere?
Doesn't even make sense that these continents would not have been populated.
Beside that - who's to say if people crossed the Bering straights - that they didn't go up and over as well as, or instead of over and down? think on that one. Just as valid for a "theory."
But back to the assumption that these continents were devoid of humans for millennia - and the only way people could've been here was from their known world.
I find it incongruous to assume that God didn't populate these continents too.