Letting the Chinese Communist Party get its hands onto the Canadian Oil Patch.
Too many questions. None answered, as far as I can see.
Bottom line: Should there be war, it must be ensured that China's Communists cannot confiscate our oil/oil assets, and can be booted out just like they booted out foreign investment and businesses when they rose to totalitarian power via a murderous revolution.
I also don't like the idea of doing business with the evil, bloodthirsty, greedy Communists.