The separation already exists: people following the legacy media vs. people following independent media. Two groups of people living side by side but with completely different worldviews.

people use these platforms to circulate anti government information and to organise in groups - it's a reactionary, authoritarian effort by governments to try to impede the rising tide of revolt that is sweeping across seemingly ever larger areas of the world - while it's true that other possibilities exist for people to communicate and organise, the widespread use of these platforms means governments understand that banning will have an effect of limiting, albeit for a short time, the ability of people to mobilise in revolt against their states.

Russia will ban both iOS and Android? To what alternative? Huawei and oppo?

The bifurcation is also about people choosing the state and authoritarianism - or choosing freedom and sovereignty. Very interesting times.

What do you think would be Turkey's motivation for blocking Instagram's platform of mindless narcissism? Is it similar to Tiktok where people are just basically payed to shill whatever social message they are payed to? War against populism?

Yes, you're absolutely right that the world is entirely on the brink of seperate information flow. I think The cultural differences among East and West are one big reason apart from other reasons.

Social media is not really needed. Sure, it makes life easier but if you get a phone number, you can easily call and keep in contact with a person. Unless those countries are having some benefit for using these systems, they should turn them off.