Also, I think big and powerful government would implement very strong surveillance and stop any kind of revolution, even stop every nascent seed of revolution and control every communication medium. The acts of terrorism would be sufficient justification for an increase in control and surveillance.
So, as a summary, I think that it's a better idea to try to improve the system from within and peacefully, and that observing what happened in Serbia may be helpful.
The problem is that all politicians on a national stage are utter sociopaths, just like the C-level executives of every large corporation. These institutions cannot be managed by people with real emotions and empathy; the scale of their operations make it literally impossible. We simply need to make it illegal for such institutions to exist in the first place, except ephemerally through collective action.
Douglas Adams had it right: anyone that wants to hold an office of power should under no circumstances be elected to such a position.
To impose a rule like "no national states" you need a world scale big and powerful organization. And somebody would govern it.
"You are walking along the beach. You see a tortoise laying on its back in the hot sun. You don't help it get up; why is that?"
But, really, I don’t expect things to go any differently. Tyranny is here, and it is here to stay. It is unacceptably bad now, and it will only get worse. This is what I believe will happen, which is fully independent from what I would like to see happen
Expect more domestic terrorism everywhere. From both the people in protest and from the governments in response. Already, I see the government committing acts of terrorism (shielded under the cloak of “authority”) on a daily basis, and I hope some people will at least finally have enough and stop bending over to take it without a fight.