Two different measures on the same set can put "almost all" their probability in different places. I guess it depends how you are discovering anime. Speaking as someone who started at zero and just started watching the most popular and highly-rated films, I encountered very little that's childish and oversexualized -- quite the opposite as compared to classic Disney. So via my discovery process, almost anything anime is great and compares well to Disney for kids. So from my limited experience, I think dismissing the genre like that with a negative stereotype is misleading.

I'm pretty sure almost is just hedging, you can say it about whatever you like really, it makes your point seem like it's saying more than it's not.

In my opinion anime tends to be less childish, and better done than american animation. The sexualization is a bit concerning, but I think that's just different cultural values.

Re old disney: I suppose you are thinking about Snow White and Cinderella. Note that the prince play a very small role, everything is about the journey of the girl. If it was gender–swapped you would say princess charming was purely objectified as a prize to be obtained. And some classics like Alice in Wonderland does not fit the template at all.