I'm an Indian. As a past H1B visa holder, I know that this happens. I've seen people being so biased that they only recruit people from the state they belong to in India.

And, I've come across Americans in bay area who were so pissed off with this that they voted for Trump. The level of politics and discrimination I've seen would make anyone angry.

There are highly skilled people working on H1B but they're a minority. If H1B allows only full time employment and no contract jobs, a lot of abuse will be eliminated.

Edit: Why the downvotes? Truth hurts? This is a known secret throughout the valley.