> The US doesn't manufacture those items because it's cheaper to have them shipped from China. Raise the cost of manufacturing them there and importing them, and the balance changes.

The US doesn't manufacture those items because it has no capability to do so.

There are no factories, no supply chain, no expertise and no known how.

There are some things that are cheaper to manufacture in US, (surprise!) if you manufacture for the local market, than in China, but them being simply cheaper still doesn't mean you can actually manufacture them.

I myself tried to setup an electric scooter factory, first in Canada, and than in Washington state. We were simply unable to find even moderately competent manufacturing engineers, nor the line workforce.

Of course, every consumable and every part had to be imported.

And both of the above meant that we decided to close the business in under 6 months.