I don’t see that there is a strategy. There certainly isn't an economic justification. I think it's a lot simpler than that. Trump's doing it because he can and because he enjoys the feeling of power.
Two ironies here. First, Trump (or any President) can freely assess or revoke tariffs only because Congress ceded that power in the mid-70s.
So to stop it now, you have to make the case to a federal court (with inevitable appeals, probably ending with SCOTUS) that Congress didn't have the authority to cede the power in the first place. Therefore, the action was invalid from the outset and the President can't in fact levy tariffs without the consent of Congress. Trouble is, you have to make it 50 years after the fact. A bit late, isn't it?
Of course, Congress could rescind and take the power back. But regardless of who's President that would be vetoed instantly -- when's the last time you saw a President of either party stand idly by while a power the office has held for 50+ years is rescinded? -- it would require a veto-proof vote of both the HoR and the Senate. You might as well yell at clouds.
Second, today Democrats are jumping up and down and yelling and stomping and burping about the effects of tariffs on the US economy. They're right.
The irony is that, 50 years ago, they were on the opposite side....actually advocating tariffs. Reasoning then was pretty much the same as what Trump says today: "To protect American industry and manufacturing jobs." That argument was just as flawed then as it is today.
If you had told me in 1980 that Democrats would be denouncing tariffs and Republicans would assess them willy-nilly, and that Wall Street would support Democrats and union rank-and-file would support Republicans, I'd have called the guys in the white coats.
The world turned upside down.