Some of us Americans agree too. I didn't know about the sour milk, but find most Hershey's products disgusting. But I also don't waste calories on milk chocolate, only dark.
It's odd though, how when you grow up with something it can taste perfectly fine, yet to people in another country it tastes like vomit. I've noticed that with some European specialties too. Some of the fermented Scandinavian foods come to my mind - even though I love herring in all forms!