The yellow peril
Palantir apparently has vacancies worldwide but I presume the U.S. Department of Labor only has authority over their hiring in the U.S. I assume that would be U.S. citizens only, because at least technically to hire an immigrant to work in the U.S., you need a visa that declares that you can't fill the job by hiring a citizen. However, if there is someone from elsewhere that Palantir really wants to hire, they can just employ them at a foreign site. (I'm not a lawyer.)
Therefore, this is about Asian American candidates.
Biting the hand that feeds IT
