Are you asserting that those billions of people who also aren't getting their way (as all decisions are made by Americans, whom are not at all numerous either offline or online) are a minority?

No, just that you can't please everyone, I think.

I'm asserting that multinational corporations typically aim for the lowest common denominator. For boobs, that's to avoid showing them.

In many African countries boobs are even less taboo than in Europe though. In some countries women were pretty much always topless before westerners arrived (in South America, Africa, and countries like Bali). The aversion to nudity seems to be the strongest in Muslim countries.