The perception is that Canada-U.S. relations are piling up with potential court cases and chilling diplomacy. Ignoring or bullying our closest friend and ally to improve our trade with China knowing their political environment and economic system seems quite risky. Does it worth failing our friendship with the U.S.?
We Americans should be a helluva lot more thankful for having such a friendly (and understanding) neighbour like Canada. We could, but we probably won't. We Americans are so fixated on building our foolish and short-sighted consumer/gladiator-show culture that it's easy to forget who provides most of our imported oil.