I'm not arguing whether tarriffs are good or bad, but the absolutely do work.
> It's the US companies that pay the tarrifs.
No, customers pay the tarriffs at the end of the day. Companies raise the prices of imported goods to cover the tarriffs, and tarriffs in this case are set so that the final retail price of imported goods matches (or exceeds) the domestic manufacturing price.
> The concept of 'if we increase the tarrifs, US manufacturing will come back"... It takes years...
The idea is generally to have tarriffs from the beginning so manufacturing never leaves. Because you're right, otherwise it does take years.
> Placing tarrifs on China hurts American consumers. Instead, there should be tax incentives for producing stateside.
There's no difference, they harm consumers equally. Corporate tax incentives mean reduced government income which needs to be made up for with... higher personal taxes. Or higher corporate taxes in other sectors which lead to higher prices. No matter what, the consumer is paying.
Tarriffs or tax incentives have the same effect, but tax incentives are usually much more difficult to design and limit corporate flexibility in bad ways that are hard to foresee. Tarriffs have much more reliable enforcement and predictable effects.