You miss the point
China is incapable of the blockade you suggest.
Rather, China is in danger of being blockaded by the various navies currently on patrol
If China is blockaded, most of the economies of Southeast Asia will collapse. Why would they go along with that?
Another traitorous globalist lie.
My thought on blockades is that they do not have to be airtight. Instead, they can succeed if they create sufficient concern among commercial shipping companies and their insurers. I think China is, through its submarines and through its various anti-ship missiles, capable of creating such fear. Unless it happens, it’s all speculative. Hopefully, it stays that way but having a corrupt halfwit as US President does not lower the odds.