Im sorry but I think you're the one who has it wrong. The op is calling out the infantalisation of the mc, which is now becoming a common trope in mainstream bl, this also indicates that the direction many new bls are going for nowadays, which is conforming to heteronormative standards. And these standards feature infantalisation a lot due to the expectation of women to be small, dainty, and docile, while the man is big, strong, commanding and forceful. So, as you can see if you are using your eyes and comprehending what you see and not just brushing it off, in many famous bls, the mentioned standards are present, and this is the reason why they sell so good, this is also the reason why switch couples are not as famous along with stories that do not follow the standard. And this, I believe is one of the many indications of a recession (and if not, then definitely, an indication of no progress in accepting such) along with the rise of tradwives, ED, and the excessive flaunting of the ultrawealthy. You can look up lots of video essays on tiktok and youtube too.

If you guys think he looks like a child right now just wait till you guys see how he looks like in the future chapters His head becomes really small it looks weird