@Ashanna Hensley (Ren)
I tend (tended) read a LOT of manga in 8 to 10 situations you are right. I just wrote my frustration because my streak of those MC's was high at the moment.
I decided to take a long vacation from most Japanese media, they started losing their spirit around 90x but. The infantilization and feminazation started around at that time but it was minimal and as the years went by they started to increase those 2 factors and at around 2010-2015 (roughly) they made a major turn.