Let me help you.
Companies who want to advertise Made in American or are required to be made in America for government contracts start the product here - send it to Mexico for all of the manufacture, then send the product back and the final 10% or 5% is completed here.
He’s going after all those American companies that are doing this.
So what? the American consumer, not Mexico, has to pay for the higher price of the goods because of the the tariff which is a tax.