Yes, “Siberia is up for grabs as Putin becomes China’s vassal” as his invasion proves to be a catastrophic disaster for his country.
You made specific points regarding the trade relations, I answered it, and now you try to convert it into a political statement.
Regarding the topic, let’s talk about vassalage once Russia is starting to act against own interest on Chinese bidding. Like Europe does right now.
As for Siberia, the Chinese nldon’t like cold weather. It is a situation where you don’t need a cow to have milk. They can have anything they want in Siberia for good price.