You did ask about it. I'm not sure why you're both mad about it. Humans primarily use ducks as food and entertainment. They eat duck eggs, AKA potential duck babies. They eat the ducks. Sometimes they go find wild ducks and kill them for fun. "Duck hunting" is relatively popular "sport." Balut is just a different take on the same concept of ducks as food animals.
I think ducklings are adorable too. If I saw a lost or endagered duckling, I'd try to save it. I expect to be doing some of that this spring. I'll be going to Tractor Supply Company in a couple of days to get a small brooder I can use as a temporary shelter/home for any duckling "guests" prior to bringing them to a qualified rehabber. I wouldn't seek out balut to eat, but I'd probably try it at least once just for the experience. I do eat chicken eggs (scrambled) and often eat chicken (while the Colonel's is okay, I do prefer General Tso's chicken).
I wouldn't go duck hunting, but I admit that I do kind of support it. Frequently the fiercest advocates for wilderness preservation are hunters. Figure Exxon has killed way more wild ducks than any hunter.
But if you two really want something to get angry about, forget South Asian street food and look at this:
Secret footage was filmed at a French foie gras factory in Domaine de la Peyrouse factory in Coulounieix-Chamiers.