H1-B visa is the straw man.
Think hard and think deep.
LEGAL immigrants under the chain migration system in place are being imported at 50 times higher numbers than H1-B. Most are low wealth and low skills (61%). 25% have skills and taking jobs away from middle class Americans. That is 12 times more numbers than H1-B visa totals.
Most H1-B visa are IT people. The Legal immigrants take away more important and more productive jobs in engineering, accounting, science, metallurgy, pharmacy, legal etc from middle class America.
Those who ignore quantity will suffer the consequences.
I disagree. I know way too many H-1B personnel filling finance, strategy, consulting, marketing, pricing, forecasting, and analytics roles to be persuaded otherwise. These individuals are not just coders: they are managers, directors, and vice-presidents doing jobs that many Americans are qualified to do.
To make matters worse, foreign people come as students, get a Masters or Doctorate degree and keep hanging around until they can get a company to sponsor them with the 'high-powered' pedigree that they received on borrowed money (likely student loans) that they may never repay if they get deported.
Some go through the process, get green cards, and even become citizens, but that process is long indeed. As I had to explain to my daughter, I know far too many Americans laid off so that corporate America could replace them with H-1B individuals.
America is an amazing country. It's the only country on earth where citizens throw each other under the bus like it is nothing.
Loose your job chum to a cheap import? Eh, who cares? It's not me.
“Most H1-B visa are IT people”
This has hurt my family members who are IT people. Has driven down salaries and dried up opportunities. Maybe as you say, not in as big of numbers, but Americans are not getting the employment they need and deserve.