[ConservingFreedom]

But if it is such bad business to hire H1-Bs in the current system, their employers presumably will pay the cost of that.

They will - with significant collateral damage to the American middle class in the meantime.

Obviously, the employers think that with that on-the-job training they can do the job the employers want them to do

The bulk of the evidence seems to be that these employers are short-sightedly cutting costs at the longer-term expense of quality and productivity; by the time those longer term consequences are seen, the American middle class will have suffered.

[dirtboy]

The bulk of the evidence seems to be that these employers are short-sightedly cutting costs at the longer-term expense of quality and productivity;

I can personally attest that is happening in my company. I can also attest that management deliberately blinds itself to the problems the outsourcing is causing.