Or to hedge against the US immigration policy that could hurt their labor supply in the long term. It was not lost on me that half my engineering grad school classmates wouldn't pass the Bannon/Miller test.
Which test are you referring to? Googling returns nothing.
It's a joke -- (Steve) Bannon and (Stephan) Miller are notoriously xenophobic, nationalist aides to President Trump known for their hardline stance on immigration.