BTW, the Sa'ami claim is based much more on DNA found among Indian tribes than just the foundations of the visible Solutrean/Clovis culture. The DNA says 14,000 ~ right at the start of the big meltdown. It may even be earlier. Their initial settlements are covered by water, so that's where you get that apparent 2000 year lag.
“You get Mexico”
Well, someone certainly should have Mexico other than the feckless bunch that has it now-like someone with the cojones to bury the drug cartels by whatever means is needed-like rounding them up and making them play a game of soccer in the old Aztec style-where the losing team has its’ members sacrificed...
OH...these are my people too.
So...that's my area also.