This was, and continues to be, never about fentanyl.
Trump wants to feel like a powerful leader so instead of taking on actual substantial threats to the US economy he bullies his smaller allies, like the weakling he is.
We can't transition trade away from that failed state south of us quickly enough. And, as with many of Trump's shortsighted "bull in a China shop" decisions, this will only serve to motivate us to do so quicker while also detrimentally affecting the US' own long-term trade prospects.