I am not sure if I am understanding correctly. Or if I am being understood correctly.
What I was proposing is that instead of 25% duties, it would be possible to introduce a 25% VAT. With VAT, I mean a value added tax as in the EU or Swiss VAT of today. Not a sales / goods / turnover tax as the US knows it or Switzerland knew it until 1994. As with the all VAT, imports and sales are taxed (in the EU called VAT on Importation, Einfurumsatzsteuer, etc.).
Quick example, when A imports goods for 100 USD, he pays 25 USD VAT on importation. A then processes them (wages are paid) and resells to a customer for 200 + 50 USD VAT (remitting 50 USD to the government but getting 25 back for the import paid). In essence, 50 USD have been paid to the government, 25 of which for the import and 25 of which for the labour / profit generated while being processed at B.
Now, I further propose to ablish salary taxes / personal income taxes. Why? Because as per the above example, the guy working on the goods (B) did in fact already pay for it. That's the 25 USD that he paid on the 100 USD profit generated.
With those two measures, the net effect would be that the country basically has a 25% duty on all imports without the hassle of making other countries angry.
There are various side-effects that would have to be addressed, among others that basically no tax would be paid for work performed on export goods, residents would be incentivised to spend their money abroad instead of at home, corporate profits would have to equally be lowered as the VAT would charge, etc.
Your not explaining yourself well. Please just share with us your calculations on how the 25% regime will cover the US federal spending needs?