You're missing the point here.
They're not going to be hiring from 'body shops' they're just going to be hiring people 'remote' - just like you.
Why do you think that you in 'Small Town Ohio' are going to get hired over the guy in France at 80 cents on the dollar, or Poland 60 cents on the dollar, when they have decent language skills.
You're going to find out quickly that 'core education' in a lot of countries is as high, if not higher than US.
Brazil has iffy educational standards but their upper 1/3 get a good education, and India the ratio is worse but population higher.
The number of good devs. from China is blowing up.
US is 5% of the world's population, and educational standards vary.
It's a big world and Google etc. have no 'loyalty' to America.