But if anarchists would instead create a global decentralized network not bound to specific territories and bypass the borders set by the nation-states authoritarians would have far greater problems to destroy them. A global decentralized network can't be shutdown so easily by authoritarians and today we even have the tools to create something like that.

Complete agreement here. Doing this for digital trade is relatively simple with the tools you mention. However, doing this in the physical world becomes a lot more problematic. It can certainly be done but crossing an imaginary line without being the subject of scrunity and imprisonment becomes harder in most places year after year.

Only as long as people believe in the authority of a nation-state the nation-state exists

And as long as people continue to send their children to authoritarian citizen training camps ("public schools") people will continue to be brainwashed into believing in nation states.

I supposed the good news is that some people are wising up and learning about freedom has become much easier with the internet.

But the main problems of today are the currently not so wide spread adoption of these tools and the fact that most people unfortunately still believe in the absolute unquestionable authority of nation-states like many believe religions.

I completely agree.

One major problem is that most people are so "proof" oriented these days that until they see proof that something else could potentially work they won't even consider it.

Of course, if you start to provide proof you get bombed out of existence.