Muslims, Hindus, and Jews (which is about 1/3 of the world's population) think the USA is the place where people eat nasty shyt in general.
Shrimp and crayfish are seen as basically underwater cockroaches, nasty bugs that muck around on the bottom eating whatever dead stuff they find. Clams and oysters are just snails filtering literal shyt out of the water. If you're ever watched a pig eat, or wallow, or do almost anything, it's one of the most disgusting animals around. And don't go into a chicken factory if you ever want to feel good about eating chicken again. Regionally bull testicles, cow brains, pig feet, and of course chitlins are all a thing.