Wow this is exactly what happens as I have friends in Silicon Valley.
No Indian manager - when he gets to that post, will ever hire even other subcontinental folks like Pakistanis or Bangladeshis.
If they are compelled to - they MAY hire whites, but this is a one in a hundred situation.
These H1B people cry about prejudice and discrimination, but they are quite biased and discriminatory in hiring other non-Hindu people themselves, I am sorry to say.
Out of the dozen or so Bangladeshi friends I have working in Silicon Valley (almost all are highly placed brilliant a-listers from MIT/Harvard/Yale), all have had hundreds of mid-level manager interviews with companies like TCS, Infosys, WIPRO but never did even "one" land anything with Indian outsourcing companies. US contracting customers don't hold these backoffice people to hiring discrimination standards, which IMHO they should. These Indian companies are being paid for contract personnel which is easily 70% of the entire workforce of Silicon Valley. One type of visa (H1B) and only one country monopolizing it, India.
Of course my friends are not serious about working for these scammer outfits anyway. They know Indians will never give them jobs nor pay them proper salaries. These entire group of Indian back-office companies are just body-shops, and that too for cheap people who will only work at half the going rate.
I'd ask
@RiazHaq bhai respectfully - to comment on this situation for Pakistanis in Silicon Valley as well.