I understand you frustration but you are hurting everyone with this statement.

At this point, russia is still struggling for total control (not yet n korea) over their citizens. If we cut them off, we hand over the keys to everything russia to that insane individual.

This would have very dire implications.

1. russia would 10x their propaganda capabilities as there is no way to gain outside info for the people
2. russia would indeed become another nk but with 142 times the size, 6 times the population and very near the european borders
3. have you ever heard of the axis powers? They were tiny in comparison to russia. Now think who else would likely join that totalitarian power grab? China is already working with russia. Have you any idea how fucked we would be?
4. dividing the internet is actually in the interest of any propagandist in any country on earth. Far right movements anywhere would have a field day. Think of the mass murders that are first reported on the internet. They would go quietly in the future and much more successful.

Thats only what I could come up with in a couple minutes but cutting russia off is just not a good idea at all.

Have a good one.

But you'd also be giving their governments total control of all information, to the detriment of citizens and any possible organized resistance.

Mate, the Russian people aren't our enemy, but the Russian government that opresses them is.