> We could just go back to the Cold War days and cut off trade and communications altogether.

Sorry, this is an absurd, bad faith argument and doesn't add to the conversation in any way. If you want to rejoin the conversation and discuss real options like a mature adult, go ahead. Otherwise, stop wasting everybody's time.

The Russian invasion of Ukraine suggests that Russia may be willing to go down that path. If China invades Taiwan, I can absolutely see a scenario where this happens. China, being export driven, would likely have a harder time than it expects. Russia’s petroleum exports are enough to disrupt global supplies, and the reason they’re still allowed to trade.

You're a sad little person, aren't you?