Used to be a pretty diverse mix across Asian and Eastern European candidates, with a rare white US person mixed in.
Now it is pre-dominantly Indian.
Really don't like single-ethnic teams, so hiring is getting even more challenging in the Bay Area. We've also opened dev centers in the US mid-west and Canada to help with this.
just a guess.
Also, I believe First Nations tends to be the preferred term over indigenous, aboriginal, or native american.