Okay. If you can get Congress to pass a Congressional Act legislating a California born member of La Raza may request Los Angeles, Mexico printed on their US passports and the President signs the Act into law, then I’d support you’re demand to have Los Angeles, Mexico printed on the passport.
But if the President says, “I signed that Act into law under protest so I refuse to allow the State Department print Los Angeles, Mexico on US passports”, then I don’t want to hear an argument that passports are US foreign policy and the President has exclusive rights to develop and foreign policy.
Free speech and personal liberty are not subject to Congressional action. Either we all have these rights, or nobody has them. Congress doesn't have the authority to dole out these rights for vocal special-interest groups on a whim.