I think the strategic angle is important, but I doubt it's part of a long-term plan to start a war with China. I think the more likely concern is that if the US becomes too dependent on Chinese manufacturing, China could impose sanctions on the US to control US foreign policy.
And a similar concern applies if the US lacks the manufacturing capability to wage wars with its own resources. Something we already saw that when we ran out of ammo because of the war in Ukraine.
