They remain, however, non-immigrant visas, and require a separate application for immigration, which is what allows immigration by the quotas applicable to the basis of immigration under which you apply, not the status under the dual-intent visa and it's quota.
The current estimate is that over a million H1bs (not counting those who've gotten green cards) working pridominantly in IT, nursing, and pharmacy.
This has destroyed wages and working conditions in these fields.
Yes, I do.
> It's 85000 per year at 3 year visas x 2 renewals.
Yes, but that's not immigration, it's a temporary, guest worker status on a non-immigrant visa.
And actually it's more than 85,000/year, since campus H-1Bs are uncapped. The highest recent year I find records for is 162,000 in 2014.
> Then they are able to apply for a green card.
Actually, they can apply at any time, but they have to meet the requirements for the immigrant Visa category under which they apply and fit within it's quota. H-1B, therefore, adds nothing to immigration limits since anyone who immigrates after an H-1B does so within the quota for the visa under which they immigrate. (For post H-1B employment-based immigration, that's usually EB-1, EB-2 or EB-3.)
> The current estimate is that over a million H1bs (not counting those who've gotten green cards) working pridominantly in IT, nursing, and pharmacy.
Given the 6-year limit and the number issued each year, it's mathematically impossible for there to be over a million H-1B workers in the country. Those estimates, therefore, are wrong.
H-1B allows zero immigrants per year, because it's a non-immigrant visa.