You seem to confirm my theory that it is easier to land a job as a H1-B than as a US citizen.
Could it be that H1-Bs have firmly and thoroughly infiltrated the corporate world that the hiring manager would prefer to hire someone of their race, religion, culture, etc? Or that because of the corporations and managers are willing to shell out the excessive amount of money to hire a foreigner over an American for guaranteed six years of service and no job hopping? Turn overs are expensive. It takes probably one year for someone regardless of background to get completely up to speed. If that person leave at the end of one year, I wouldn't have gotten back my return on investment. But six, and at which point you can hire someone cheaper to start over, sure, that sounds a lot better!
We all know that the white HR team have no say in who the manager decides to hire. The manager at this point in time is more likely going to be a) Indian or b) white but thoroughly believes in saving his own ass by hiring replaceable H1-Bs.