Oh, that too. China is the best place to manufacture most precision goods today, period, independent of labor costs.

But even if you could wave a magic wand and put the USA on equal footing in terms of skills and experience and capability, it would still cost several times more to make the same goods in the USA due to the labor costs (and labor-adjacent overhead costs like workplace safety).

Both would need to be solved, and I think that solving either one alone is already basically impossible on any short- or medium-term timescale. A tiny bandaid like tariffs isn’t going to move the needle.