Americans will always attempt to improve their wages, either by negotiating or job-hopping. An H-1B worker is legally barred from improving his wages. Even if that were possible, he wouldn't even try. The whole point of the job is cheap labor and the salary is infinitely preferable to whatever he gets in Mumbai. The negotiation is over before it even started.

So if Americans aren't able to compete on price, they can compete on quality right? No, because for most staffing needs, quality isn't even a competition. The corporation literally does not care if they put out a worse product than last year or the year before that. You know what is a competition, though? Shareholder value. See point 1.

So if these megacorporations put out deteriorating product lines, what's the solution? Well, if we consult the free market handbook, an hotshot new company that employs quality American labor will outcompete and displace them. American entrepreneurship, baby! Except even if that were possible, it'll take decades, and in the meantime our workforce will have absolutely nothing to do. The market can stay irrational longer than you can stay solvent.

And on top of that, even if a new upstart did dethrone Microsoft, Google, Amazon, or whatever, they'd just lay off all their Americans again.

The H-1B program must be shut down as soon as possible.