This is a lot of semantics to unpack…

Civilization IS about to collapse, however, to many people, they just won't care. Starbucks went bankrupt? Woo hoo! The central grid went down? Well, we warned ya, and got our own off grid power.

But really, the collapse is mental. There are people that believe in communism (as a govern-cement structure). Meaning, they can't think two steps into the future. People who think whites are bad, and we need to avoid racism are mentally ill. Illogical. Not rational. Soon we may have people living in tents in front of their houses, to signal solidarity with homeless. This is collapse.

We also have a movement of women saying they need no man. And so, men are leaving. The people doing high voltage work are all near retirement age. So close to the grid falling apart. And yes, we will have decentralized power soon, but many will see the grid collapse.

Homesteads are much easier to defend. And most importantly, they have space around them. This allows time to meet anyone coming near.

And the homesteading communities will be even better.

Nuclear power is the most costly, most destructive, most dangerous way to boil water. I would avoid those at all costs. Putting them everywhere is a WEF plan.

There won't be city-states, unless you are talking about intentional-communities as a "city".
When things get back together, it will not be a nation as we know it today. It will not be top down, it will be more of a collective of communities.