The State–the Government–cannot rationally recognize any limitation to its power. (And this fact is purely logical, where I define “logic” here as rational consistency.) This is because government is Authority, and Authority is Force. Force qua Force is not compatible with, nor can it fundamentally be subject to, ideas, reason, compromise, Truth, ethics or morality, context, reality, opinions, pragmatism, rights, etc.. In other words, government, at root, is monolithic violence, and thus all of its actions–when all equivocations, paradoxes, and prevarications are distilled down to the logical axioms–are merely the exercise of violence for the sake of violence.
I understand that this is difficult to both accept and to apprehend/comprehend, but the rationally consistent fact is that actions spurred on by authority, by definition, are mutually exclusive of anything requiring the recognition of individual existential/ontological “rights”; that is, the right of the free intellectual and moral agent to utterly own himself and therefore manifest his own singular life according to his own will…and this axiom (that man is only man if there is the corollary of Will) is a metaphysical, ethical, and social primary which necessarily (rationally) demands that all individual interactions with one another be completely voluntary. But as soon as you inject Force via the notion of “governing Authority” into the equation, you have again by definition contradicted all manner of free and voluntary expression. That is, Force and Will are utterly incompatible, because Will requires categorical voluntary interaction in order to actually be willful.
Now, all of this is to say that geopolitical “borders” are of no relevance to government except as a yet another means of asserting its power; an expression of Force, to the infinite expansion of itself. They will be “opened” or “closed” not in service to the sanctity of a nation’s individual citizens, who are also merely a target of its Force, but only in service to its own Infinite Absolute.
So, for those of you scratching you heads at the utter disregard our government has for US border security at the moment, and the persistent demagoguery it displays (along with the left in general, which is the overtly statist of the two major political philosophies) with respect to calling border security advocates racists and imbeciles, now you know why. It is merely pursuing the logical ends of the premises behind it.