Interesting responce & perspective. The theory is really that it's less of a problem with the sexualized depictions of breasts and more of a problem with the lack of non-sexualized sightings, which make it harder to seperate the two. As in the case with men's chests, which are constatly sexualized as well (random Marvel shirtless scenes anyone?) but also decensitized in non-sexual contexts.

I think much of what you are saying is adressed in this article too: https://medium.com/@Guy4Progress/the-madness-of-modesty-doctrines-ff93a13d7acc