Reading this, I feel like I’m seeing the past through the eyes of a US-based zoomer. This person should spend 6 months living with the locals in any 3rd-world country.
The US has a fantastical food culture because it's a large country that can natively produce almost every crop, and was historically agrarian. Adding to that, the US food culture always changes to wars, new immigrants, boycott, and government subsidies. Most countries aren't like that, and are significantly more conservative with dietary changes.
[1] We do not love that phrasing. The Cold War is over. Just say which continent you mean specifically.