China is probably not yet ready to mount a complex air-sea invasion of Taiwan, with the mighty USA at its back. But it would have no real difficulties making land invasion into Russia.
Taiwan… not yet, too hard, but Russia is officially a GO opines our dunk tank subject, further free military advice for China can be found in the article
Don’t see anything like this happening unless there’s regime change in Moscow and Russia becomes a western puppet. On the contrary, it seems that cooperation in far eastern ports is what’s on the actual table.
Ultras are just being ultras.