Consequences of Feb 1 Tariffs?

There are two rules governing a trade war:
1. Nobody ever wins a trade war.
2. See rule no. 1.

Trump thinks that Mexico/Canada will simply roll over and not retaliate, perhaps because of his otherworldly mind-meld superpowers. And you would think his billionaire buddies would whisper in his ear, but that might mean losing privileges at Mar-eh!-Lago. It's not an especially difficult concept but it's lost on Trump.