I don't know much, if anything about geopolitics or diplomacy (to the point of finding some stuff absurd)... but after this period of escalations, especially the ones from Russia, with the whole sham referendums and annexations, I think the global positions are set.

Neither India or China care enough to do anything about it. They had plenty of opportunities over this period of time - and I must assume there were talks from the west in this matter.

So looks like we're heading to a split world.

Regarding talking Russia out, officially there were plenty of attempts, which ended up with Russia escalations at the end of them all.

You need to remember that part of this game now is about the survival of Putin... and I see no way how he can save face - even with the help from the west. He put himself, and Russia, into a position where there's no way out unless it's defeat and humiliation. The only way I see is to prolong this for decades until he dies of old age, and that's that.