Yes, you are correct but I disagree on few technicalities that make a difference.
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products do have substitutes, but you are talking comming down from a global market. Calories are there, but we don't eat based on calories. You can't substitute soybeans for tomatoes, potatoes for corn, or many others i don't have examples for.
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when the US starts putting in tarrifs for import, other nation states will likely do the same. Your exports of unwanted goods will no longer be competitive in the global market, leading to an excess of unwanted, cheap food and shortage of wanted, expensive food.
As much as I hate this its correct.
With lying, external influence, racism, terrorism and general crime he was just democratically elected. Supporting democracy means that it has to be followed.
It's wrong, its a bad move, but its democracy.