re: If the Borderland states left what would happen to the rest of the US

Both Russia and China have like over 60
Different ethnicities
China is even worse than Russia because of the language differences
I think Mandarian may be taught now throughout the country but there are huge language divides in this country

Out of the Big 6 countries
Canada
US
Brazil
India
China
Russia

The US has a common language, common culture and truthfully very few divisions between the ethic groups.

The other 5 with Brasil coming next and India as the worst have a lot of problems with the lack of a common culture throughout unlike the US

Canada is getting better but still especially in the Praire provinces there is an Anti Quebec and French speaking Canada segment of the population