> - There is no doubt a large volume of abuse by tech consulting companies. It's likely even worse than it looks, because the H1Bs in the U.S. are to support even larger teams offshore. I don't understand why we can't just blacklist these companies.

I wish we could ban offshore IT consultancies dumping "talent". Unfortunately politicians will not support such ban, because those consultancies help corporate donors keep the wages down. If the government banned suppliers who use offshore consultancies from bidding for government contracts those outfits would disappear overnight.