“Un-Assimilated” is the key. I wonder how many of those Peruvian immigrants are placing men into any branch of the service. If it is like the Brazilian & Haitian areas where I live, the answer is virtually none. I talk to recruiters every week, and all services tell me that aside from Asian areas, looking for service members in immigrant communities is useless.
I hope you are right as an alien army would be one more nail in the coffin.
A bridge near my home now bears a plaque for a local (I believe the parents came from Peru); in my area it seems many Latinos gravitate towards the service (though I don’t know if they are from other countries or are born Americans). Can’t say the same for Brazilians or Haitians, though; I don’t think the military offers much to them back in their home countries, so they don’t even consider it here.
I think our government has to be wary of having the military wind up as a social engineering laboratory like the postal service, employing unemployables for the sake of wealth transfers...