It is a little bit like saying “most librarians are female” or “most comic books feature spandex wearing superbeings”. While there is certainly an element of truth to that, especially in Japan where the market for manga is very different than the US market for comic books, the audience for the censored work “Honey Room” is vastly different than the audience for “Sailor Moon All-Stars.”

Much of the manga available in the US today has no more sexual content than you would expect to find in your average young adult or teen novel.

I’m not saying that its ok to censor manga, just that plenty of it wouldn’t prompt a censorship action in the first place