Trump’s declaration that “trade wars are good, and easy to win” is an instant classic, right up there with Herbert Hoover’s “prosperity is just around the corner.”

Trump obviously believes that trade is a game in which he who runs the biggest surplus wins, and that America, which imports more than it exports, therefore has the upper hand in any conflict. That’s also why Peter Navarro predicted that nobody would retaliate against Trump’s tariffs. Since that’s actually not how trade works, we’re already facing plenty of retaliation and the strong prospect of escalation.

But here’s the thing: Trump’s tariffs are badly designed even from the point of view of someone who shares his crude mercantilist view of trade. In fact, the structure of his tariffs so far is designed to inflict maximum damage on the U.S. economy, for minimal gain. Foreign retaliation, by contrast, is far more sophisticated: unlike Trump, the Chinese and other targets of his trade wrath seem to have a clear idea of what they’re trying to accomplish.