Yes, they most certainly are.
They are about safety and sovereignty and to control the movement of people and resources, both.
History is riddled with the death and destruction of thousands of societies and millions of people who, for whatever reason, (and many of those reasons are now manifesting themselves right in front our eyes) could not, WOULD not organize and defend themselves from an invading or overpowering outside force of arms or people or both.
I do not want the Levant, the sub continent of India or sub Saharan Africa invading the United States via demographic warfare.
Using organized force to repel such invaders, to "control their movement" is just, constitutional and moral.
We like to remember and memorialize the 300 Spartans at the Battle of Thermopylae and their defiant cry, when told to lay down their arms in the face of a half a million Persians: Come and Get Them.
But what were those brave men defending?
Philosotarian navel gazing from the likes of Plato and Socrates?
No, they were defending their homes, their land, their wives and children, their borders.
