Libertarians are not naive. Republicans and Democrats are.
The Yell, the reasons for the Executive powers to be used against insurrections as present in the Constitution were actual insurrections which happened between the Declaration and the Constitution.
There's nothing remotely resembling an insurrection occurring in the United States. There's absolutely no evidence (no cause for the slightest suspicion) of such a thing.
Yet DHS is buying billions of rounds of ammunition (including rounds which neither police nor military use). Police are being militarized. Thousands of armored military combat vehicles are being purchased for domestic use. The military is holding drills in US urban areas--getting them ready to occupy US soil, and getting US civilians used to them being there.
Yes, The Yell, the Constitution allows the executive branch to use the US military to defend against insurrection.
Where exactly is the evidence that such an insurrection is occurring? DHS is buying enough ammo for decades of sustained war, buying thousands of armored vehicles, and training both federal and local forces in military tactics in urban warfare. And conditioning public servants to fire on civilian targets.
I talked to a friend's son last weekend. An army intelligence officer currently stationed in Europe. His father is rather Conservative/Libertarian. At some point in conversation I mentioned pregnant women targets for civilian law enforcement, and his immediate response was to affirm that he would shoot a pregnant lady before she shot him.
Of course I wouldn't object to shooting anyone in self-defense, even a pregnant lady. But why would a pregnant lady shoot at him? How in the world was he SO conditioned that all context of the conversation was lost and he was immediately defensive? He's conditioned to be on a power trip. He's conditioned to be an arrogant, unthinking bitch of authority.
At mention of shooting civilians, all context of the conversation dropped from his mind. Conditioning kicked in. Yes, shoot the pregnant lady. Shoot the kid. Shoot all threats. Threats are defined as whatever the authority structure tells you they are. Thought off. Shoot what you're told to shoot.
That's how the Nazis, Soviets, and Chinese carried out atrocities against tens of millions. Their soldiers weren't evil, barbaric animals. At least, they didn't start out that way. They were conditioned to view everyone their command structure deemed threats to be actual threats. They were conditioned to view everyone their command structure deemed threats to be the equivalent of actual combatants.
So what if the pregnant lady isn't armed? She's resisting YOU. She's threatening YOUR AUTHORITY. She's threatening YOUR POWER. She threatens ORDER. She's attacking your COMMAND STRUCTURE. She threatens AUTHORITY ITSELF. She threatens SOCIETY ITSELF. KILL. KILL. KILL.
I'm not questioning Constitutional authority. I'm questioning your ability to think for yourself. Because you haven't provided any evidence or argument whatsoever that what DHS and the rest of the federal government is doing is REMOTELY necessary to protect against any insurrection or rebellion, let alone one which doesn't exist and there's no evidence is forming to the tiniest degree.