I guess Bob thinks importing bananas from Costa Rica, Pineapples from Thailand/The Phillipines, and some vegetables from Mexico means that most of USA's food comes from abroad.
It's the same sort of smoothbrain analysis that claims that California produces most of the US's food, when the actual statistic is that California produces the most expensive food, especially almonds (which are water-intensive and a big source of many of the state's water woes, but dammit they just can't let them go). We could live without California's agricultural production, but if the Midwest was reverted to wilderness like Bobby demands, not just us but many nations around the world would feel the pain.
Of particular note, China (aka Bob's ideal utopia) would have lots of hungry people
very quickly, especially given their own poor mismanagement of their limited arable land. The harbingers of the Superior Future, everybody!
ETA: I had a hunch that it's been a while since we've seen Bobby even mention the "Superior Future," so I did a
Twitter search. Interestingly enough, I found zero tweets of his specifically-capitalized phrase, and the only six lowercase instances I found were between November 2017 and August 2020. It seems as though he hated how his catchphrase didn't catch on like he wanted, and the mockery forced him to go back and delete all mentions of it.
The tweets that remain are generally complaints about the damned dirty obsolescents standing in the way of his sexbot-and-rocketship future he earned, but the top result really made me laugh. Enjoy this blast from the past:

Yep, the Superior Future is a horsefaced bartender with zero understanding of economics doing a Twitch stream with
some randy (my mistake, not some randy, but another lolcow sex pest,
Hbomberguy). I'd honestly forgotten Sandy had done this a couple years ago; pretty sure she never did again, but I don't follow the Skwad™'s antics because I have way better things to do with my time. Like chronicle the misadventures of a fat diabetic "movie critic."