I agree that any one of those points alone doesn’t make for a particularly distinct cuisine, but combining them leads to a lot of diverse sub customers. I think the size point is the biggest one though. It’s hard to compare us cuisine to a single country since the US is so big that different regions create their own sub cuisines. As far as the sub cuisines go, I do think there are distinct cuisines, like you have various bun based sandwiches like burgers, hotdogs, and subs, there’s also casseroles, roasts, and southern food is its own distinct cuisine.