I basically agree with that.
So keep in mind the world eats basically European cuisine. It is for this reason that in Paris yes food is great but nothing is exotic because eg Duck á la Orange is known everywhere (and it was particularly exported in the 20th century, and particularly with the Green Revolution). And it's made to suit Europeans, so it seems like the restrictions are lax but actually European Christian diets are baked into the sanitary codes. So like shellfish. Wilbur Wright died of shellfish, and many others, he was the son of a bishop. The thing is Christianity and especially European Christians dominate the culture around food in the West, have tons of cultural export. So they're the default, so it looks like they don't care. But oh man do they care. When they travel they get special bottled water, say.
And it's the most typical thing to have dietary restrictions, for a long time I avoided fish for mercury while eating crazy doses of fish oil, a brain damage recovery diet, Christians accommodated that. It just never came up as a religious doctrine, it's fine. The Christian usually has idk type 1 diabetes, that's restrictions, or is an athlete, that's restrictions, or is a woman seeking to lose weight that's like 80% of women right there, that's restrictions. Bodybuilders are much more restrictive than Orthodox Jews.
Orthodox Jews seem very restrictive, and yes they totally are, but while it is partly because they make basically no concessions, and are part of a powerful ethnic group in America, meaning they have power everywhere, like newspaper editors, practically if not literally all producers, a good share of politicians, bankers, what else...well they also have been a fractionally small highly persecuted (on-and-off) minority for thousands of years.
In agreement, let me cite the exception that proves the rule: Charterhouse monks. Eat no meat absolutely ever. I think do eat fish, so fish on Fridays is a Christian thing.