Even Canada and Mexico aren't stupid enough to align with China, and if you think a power vacuum will simply exist and remain in balance in perpetuity, I've got

Even Canada and Mexico aren't stupid enough to align with China, and if you think a power vacuum will simply exist and remain in balance in perpetuity, I've got a bridge to sell you. If you're just talking about the relatively brief period before it's clear who will emerge as the default hegemony, I don't really care about that period and am discussing after.