This is such BS. FAANG H1B salaries are the same as regular employees. You have no idea what you're talking about and clearly just form your opinion on hearsay.
I'm not American, so I'm not endorsing the same belief, but isn't the main criticism against the treatment of H1B visa holders related to workplace treatment (i.e. work longer hours/accept extra work or you're kicked out of the country) instead of pay?
This maybe true of Infosys or Wipro etc. This is not the case in FAANG companies. They get the same salaries in FAANG and are no different from regular employees. Don't let HN skew your world view. It's cool to be anti FAANG where as people posting these are living somewhere remote, salty about immigrants.