> I'm not sure what the theory of people advocating centralisation is on how this will be resisted. Whenever I see political discussion about centralization vs

> I'm not sure what the theory of people advocating centralisation is on how this will be resisted. Whenever I see political discussion about centralization vs diversification when you look into details it's usually actually about "diversification and centralization both, but on what level". For example people who want "Europe of nations" with less EU integration and more national independence are usually also supporting strongly centralized nation-states and weak or non-existent regional autonomy inside them. And people who support strong EU integration and international organizations overseeing national governments usually also support far-reaching diversification on regional level inside each country. So in both models you have things that are set in stone and centralized, and things that are left to change freely, it's just on different levels, and what people label centralization vs diversification is mostly about political marketing.