Why would imported tomato prices increase? It's amazing how little belief Trump's supporters have in Trump's promises. Trump promised tariffs would not raise prices, because foreigners would pay the tax..
If you want to understand Trump's reasoning, here is a good summary..
https://prosperousamerica.org/consum...t-a-sales-tax/
All 10 points in the above article are, in my opinion, valid only in the short term.