We could save a lot of money by just selecting 9 people to decide who will be President. Of course it would have to be the right 9 people.
That map is misleading. We know from history that the 2nd group didn’t migrate mainly through Anatolia, but by crossing the strip of land between the Black Sea and the Caspian Sea, then turning west.
Also, and this is typical, their dating is misleading. The migration may have begun around that time, but it happened in a number of waves, with the largest groups of immigrants not arriving until thousands of years later.