I don't really see why that's any funnier than any of the myriad of things we do here in our own countries that aren't practiced elsewhere.

It's funnier because of hypocrisy, partly a result of cultural norms. For example, a strange accent (to an American or many other English speakers) could be perceived as "funny" unless conditioned otherwise, even if this has nothing to do with a person's status or a country's level of development.

I didn't say it wouldn't be funny, just hinted that people were laughing at the OP on the other side of the world too :)

For instance, this episode of Last Week Tonight on the french elections is just full of "ho ho the french eat snails and like pastries" jokes https://www.youtube.com/watch?v=hkZir1L7fSY

I'm sure there's the equivalent jokes for americans.

Cows being sacred is no more funny than God killing his son to forgive humanity for the crime of some couple in ancient history eating an apple.

Religions are weird. If you find some funny but not the others, you probably have blinkers on.