"Thank" 9/11 for that one. The reactions to this attack was the first crack in the dam of human rights, and unscrupulous/authoritarian politicians dismantled it until unrecognizability over the last decades.
It turns out that not everyone appreciates being turned into an economic client state of the US. Nationalism is a direct reaction meant to (whether effective or not) reaffirm sovreignty.
Shipping India's able-bodied workforce to the US and driving the rest of the local economy with low-wage factory jobs absolutely hampers a country's ability to govern and develop itself. The threat of pulling manufacturing out of a country becomes too great and forces governments to bend to the will of foreign investment.
>Shipping India's able-bodied workforce to the US [...]
I wonder why the blame is on the US or American companies, which offer better working conditions and pay, rather than Indian companies for not being competitive enough, or the expats for "defecting" from their home country.
And what about the laws and treaties that enable enacted by the indian government? If they wanted to they could do what the soviet union did and impose borders controls to prevent indian engineers from escaping india.