You also have to think that this plan was started in 2014 with the annexation of Crimea. There was no going back from that point on. Ukraine was only growing stronger and angrier at Russia. You either assimilate them, or withdraw. The latter is not very Russian. So it is possible that the Russian gov also saw this move as inevitable not to lose face after what they started 8 years ago, and they will now suffer the consequence of western sanctions.
What is sad really, is that China doesn’t give a fuck.