I will 2nd your observation. I work in the Pharmaceutical Industry and the same thing that happened with the H1-B visas.
Once a Patel is made a supervisor or manager, then the whole department will be only Patels. If a White or Black gets put into that department they will sabotage them (Only talk in their language, never train them, steal their lunch, etc). Very Nasty people.
Indian companies are worse, they will only hire non-Indians for Sales or Regulatory positions, just to look legitimate to the outside. And the amount of fraud and lack of Quality Control is staggering, most are in trouble with the FDA. I would highly recommend never to take a drug manufactured here or aboard by an Indian company.
Thank you. This issue is infuriating, and has impacted my life - and my friends's lives - profoundly.
My experience, too.