Two things.

First, dating and commitment is about matching and compatibility, not about some kind of objective ranking system of quality or merit. It's about how a partner or potential partner rates on your own personal scale, not some sort of societal scale built by social consensus. So while it is ok for you to find a particular trait to be a negative, or even a deal breaker, your point is completely irrelevant to the advice being given, which is not to hide important traits of one's identity.

Second, your own preference here is stated in unnecessarily condescending terms, as if your preferences are right and the opposite preference is wrong or the sign of some kind of disorder. Whatever your definition of "toys and dolls" are, it probably isn't a very tightly defined term, and I'd venture to guess that you are OK with some kinds of "toys" but not others. People collect stuff. People develop emotional attachment to physical things all the time. And for you to gatekeep and say which things are acceptable or unacceptable is kinda an asshole move.