Not your bad though.
Without the /s tag, the meaning is unclear. Was he agreeing or disagreeing? Your guess is as good as mine. Sometimes sarcasm is very obvious, but not here. He did clarify in the next reply.
Mexican exports to the U.S. are a massive part of their economy, which is why Pres. Sheinbaum has tried not to antagonize Trump. She, along with all of us, knows he's a fucking moron but she has to play along because they have a lot more to lose than we do in the bilateral trade. It's worked in the past, they promise to coordinate with us on tough border policy and Trump brags that he won major concessions. "The Art of the Deal!" 🤣
Canada is taking a somewhat different tact because of the moronic "51st state" BS that's very insulting. Also, there's basically no fentanyl flowing from north into the U.S. so Trump admin declaring a BS emergency to impose harsh tariffs is probably illegal under international trade law (i.e. if it ever went to the WTO, we'd lose).
For the most part, nobody wants to do deals with an unreliable "partner" but as the NYT reported, there is currently a separation between some countries that are striking back (i.e. China and Canada) and others that are trying to play the appeasement game because they imagine the U.S. will ultimately cave after Trump has torpedoed the world's economies. You figure at some point major corporations will tell GOP Congress critters that tanking economic growth wasn't why they backed Team Treason.