Wow! Great article Froma! Even Bernie, too! (more people in Seattle than all of Vermont - chuckle).
Now, carry on the discussion to H1-B Visas. Since those are issued where the US "doesn't have those skills" (yeah, right), and the big 3 or 4 in our local area are hurting our local economy by not hiring our own people, the following progressive proposal in line with Trump's hire Americans first:
For every H1-B Visa employee hired, the employer must hire an American to work with the person from the other country to learn the job. This, so that when the Visa runs out, an American is retained and employed. And, concerning Bernie's numbers, the American trainee must be from the pool of worst percentage, currently black Americans. Bernie says 51% which is very believable.
When was the last time Microsoft, Amazon, Google and Starbucks hired a black American for their $150K/year programming jobs? They fan the flames of employment discrimination, and stoke it with foreign coal as well.