>> A doctor trained in India is no less qualified than a doctor trained in the US.

This might be objectively true (which you could reasonably determine through some combination of standardize testing and surgery complications/outcomes), but if you ask 100 people on the street in US whether they would prefer to see a US MD or an Indian MD for their heart surgery, I bet 97 or higher would prefer the US MD. The tiny remainder would probably show no preference.

Their is a brand power of a US medical education, which is especially strong for US patients.