I don’t know why China is so keen on helping Russia. Is this some kind of godfather deal and they want some massive ROI from Russia once things settle down a bit? Or is this some long-term strategy “against the West”?
I think the answers to your question revolve around Russia ending up being an economically linked vassal state of China, China/India/Russia becoming an economic block, and a desire to not use the US dollar as a reserve currency. Personally, I think Putin is screwing over his own people almost as badly as people in Ukraine - in the long run. Ukraine will get a lot of love from the west, when the fighting is over.
You're mentioning China/India/Russia like they might be some minions, but taken together they have a population of about 3 billion people (out of ~8 billion the Earth now has) and a giant land surface (thanks to Russia, mostly).
Probably the Western US and Canada will also get dragged into this, economically speaking, for its own benefit.
What was the correct decision for Obama and its foreign policy advisers (they were the first ones to brand the "pivot to Asia" thing) in the early 2010s is also the right decision to take for today's Russia.