Ever been to Berkeley Bowl? I have French family, so I have been there a lot (grew up in Germany, though). French supermarkets are astonishing (especially compared to Germany), but Berkeley Bowl really is something else.

Growing up, it was sometimes hard to know which part of the woods was in France and which in Switzerland. So yes, I have been there, a few hundred times.

You, clearly haven't been to those places I listed or you wouldn't have made that statement (and yes, Berkeley is atypical for the US).

I find it pretty hard to believe that France would have even 1% the amount of Asian food that I can find in southern California grocery stores.

There is some big supermarket specialized in Asian food, 11000 products form 100 countries : https://www.tang-freres.fr/produits-asiatiques/