Let's be real, everyone feels nudity is inherently sexual, except on HN and probably on reddit where men love to claim that it's not. I don't know if it's virtue-signalling, sexual frustration, or something else. It does sound weird and creepy to me - grown up men who claim that naked women are not arousing, the same men who rally en masse every time pornography censorship is discussed, to complain about freedom of expression, when they are really just afraid they will lose the ability to stare at naked women having sex.

Another, more charitable, explanation, would be that a lot of people around here are asexual. It's possible - but to this extent? I am skeptical.