If so, Russia should organize and arm the army in eastern Ukraine and send hundreds of thousands of civilian volunteer troops to attack western Ukraine. Then this will be a civil war under the national framework of Ukraine.
Russia can support the civil war in eastern Ukraine, but it should not support the independence of eastern Ukraine. If a region can vote for independence or even join another country without the consent of the central govt, the world order will become chaotic.
Let me ask you a question: if Taiwan also votes, what will we do?
If the Russian govt overthrows the Nazi govt of Ukraine by supporting the Ukrainian civil war, I will support Putin 100%. But if they incite independence, then I will suspect that its purpose is to annex the territory of Ukraine.
Now China's national strategy is B&R, and Russia's behavior seriously interferes with the security of B&R's investment environment in Eastern Europe, so I have hated that.
But judging from the geopolitical situation, we can't allow Russia's economy to collapse under any circumstances. Therefore, we still need to continue to support Russia's economic development, and oppose western economic sanctions against Russia.
BTW: I remember that USA also annexed Texas after supporting Texas's independence from Mexico. USA also used the name of peacekeeping force when it entered Kosovo to bomb the Federal Republic of Yugoslavia.
Dissimilarity.
Taiwan is China's territory, which is the civil war of the Chinese people. Eastern Ukraine is the territory of Ukraine, and Russia is an invasion.
We do not need to rely on the strength of Russia to recover Taiwan, but we need to ensure that there will be no large-scale chaos in Taiwan after recovery and will not become our burden.