All of them becoming KYCed is probably not possible, but then if only 1-2 large pools end up not being KYCed -- that won't be good for decentralization, however, I think the world will somehow reshape itself at one point in the near future, as it stands right now, the main country that makes the universal rules is the U.S, if the U.S bans or imposes something, all of its followers (mainly west and center EU and the other countries that you all know) will have to follow the footsteps, with the current war in Ukraine, the BRICS, possible takeover of Taiwan, the war in Palestine, all of these things happening at the same time and as sad and devastating they are, it looks to me as a huge change is coming, the world will be less decentralized and enforcing monetary policies won't be as easy as it once was.

I expect some large BTC mining operations will take place in Russia, and some large Russian mining pools will emerge at one point as well.

With that said, I personally don't trust any government, whether it's the U.S., Russia, or my own government, and thus, a decentralized pool of some sort will be a must at one point.