Not with a bang, but with a circus
I'm in total agreement. We won't solve any of these crises while foreign policy is still base on zero-sum game dynamics, when the crises themselves don't respect international borders. It is a multi-polar trap though, and someone in the global north is going to have to start playing a different hand to break the impasse.
I don't know how this can be achieved without spooking markets and knocking billions off economies though, which is why I can't see any country going it alone.