I wouldnt be suprised if the USA's food insecurity only exists for profit, as in they have enough domestic production, but choose to export high quality stuff and import low quality for the sake of corporate profit, AFAIK this actually happens with beef industry, they literally export high quality beef only to import lower quality argentinian and brazillian beef (mostly for things like burgers patties)

You're not wrong and I think a lot of Americans miss that perspective. We're bottom of list in comparison to "developed" with similarly wealthy economies, but we haven't reached the poverty of poorest countries, yet. Right now we're more comparable to an imperial power like Russia, but even then we're probably falling behind (at least they have a strong labor market thanks to their war killing so many young men).

That said, it is entirely possible for us to reach that level of devastation if the coming depression is bad enough and we enter a prolonged period of war and instability following Trump. I wouldn't bet money on it, but it is more likely than most want to believe.