Fair enough. I don't disagree but you made a pretty big straw man to be fair. This whole post reminds me of why I'm not a libertarian myself. I share many common views with the movement and like a ton of people in it... but its so big and amorphous the label is just an easy straw man.

I still don't know what a non-libertarian does that does help them survive? Nothing? There's no point? FWIW I think we see tyrannical gov destroy itself given enough time. If they push to hard to fast they fail.

When it comes to gun rights I don't think you are framing it right. Its just the right to defend one's self from any threat. That could be the gov but that is more of a balance of power to keep local authorities from just running over people. The world you describe is accurate and guns are just one form of arms. Bitcoin, encryption, malware, and many other things are used against states. Its a constant arms race. Even without guns when a state loses the faith of the people its walking dead. Don't underestimate the utility of an armed public. Of course they are out gunned. That's not the point of most gun owners I know including libertarians.

Most libertarians I've run across and know are not thinking in the ways being described in these threads. I really mean it when I say this is a straw man. For most its a philosophy of how people should interact. I don't think many actually think humanity is anywhere near adopting that philosophy or that the states of the world are just gonna roll over.

What I think happens is that people call themselves libertarians online. Kids really. They are naive and full of ego. They don't understand economics or global conflict. I see these people too. Next week they will be Trump supporters. If you wanna know how all over the place libertarians actually are take a look at the libertarian party. Its wild how massive the tent is.

Even the anarcho-capitalists I've read are far from naive. On the contrary they are often the most realist people you will read. If you want real critical perspectives on both the left / right politics you can't really get it unless you are outside of it.

Edit:

I really believe Trump has libertarian voters to thank for his victory. I keep thinking about all the libertarians that voted and openly supported Trump every time someone makes the arguments you have put forward. I think you need to adjust your frame of what you think a libertarian is and is not.