No, I'm talking about commercial animation produced by Japanese studios, whether it gets released in America or not. They - Japan, I mean- have spent the past fifty years producing television series and films, most of which is completely suitable for an all-ages market.

You do realize Princess Mononoke (the film referred to in your link) is a PG rated movie, right? Hardly adults-only fare. Films like "Legend Of The Overfiend" are the exception, not the rule. Even in Japan.