The OP said "almost anything anime" - almost. The majority of anime are not Studio Ghibli. We could be discussing anime (and manga) tropes for a very, very long time but there's a clear trend of a very disturbing portrayal of women (actually, "girls") in anime. "Oversexualised" only begins to scratch the surface.

While there are certainly mature, grown-up anime with characters that make sense (try Your Name for something newer than Ghibli) a great big chunk of anime are just childish.