After the newest iteration of sexual kink story hour I was thinking about the gay rights movement and once again can only come to one conclusion, the gay rights movement was a contrived milestone, not the goal. The harshest reality we, as a society, are not willing to come to terms with is how reproachable humanity can be. We have, from the own writings of the modern social architects (Foucault, Young, Butler, et al) that in their own words believe pedophilia is natural and should be accepted into society. The Overton window was slid to the most agreeable milestone, gays who just want to be like everyone else and keep what happens in the bedroom in the bedroom. This of course was a lie from conception, but it gave room for the fingerholds of these social architects.
This methodology is a common business and government practice of what is called freezing and unfreezing(Kotters 8 step method is a similar methodology). When looking to implement change you need to first make a rationale for you change. “Government shouldn’t dictate what happens in a private bedroom”. Remember that line? So with these rationalizations they unfroze the social structure and inserted their addition. This however brings us to the most crucial step, freezing the new idea into our society. This was done, rather ingeniously on two fronts, first was the humanization approach. They took the “victims” and made them relatable. Media and culture became flooded with “Gayness”. These were your sassy fairies with charming quips and non threatening presence. Meanwhile, the second part, and frankly, the most ingenious part, was to unfreeze the next bastion as the other was freezing and make it present in the public discourse. Remember when the first CSI did an episode entirely on furries? This process made the former leap look American as apple pie. Yes, the gay quippy person with a lisp can stay, just keep the weird animal larpers in their hole. Once the refreezing was completed, the gays (Let’s keep the government out of the bedroom) gained license to expand like Oprah at a buffet. Gay rights became lgbt, then lgbtq, the lgbtqia, and on and on. We still to this day have zero proof that gayness is hereditary, or in fact is even innately biological, but even hardcore conservatives wouldn’t be openly willing to take sexual identity out off protected classes. In fact our “conservative” Supreme Court has ruled gender identity as innate and immutable. These constant changes are not from some imaginary chance of human discovery like we have been sold, the end goal is the same today as it was in conception.
Even Muhammad in his own religious text where he is depicted as doing horrible things still waited until his youngest bride was 9 before fucking her, despite marrying her at 6. So clearly there were limits and cultural norms even in the Middle fucking East about such things. They are still pushing the line far down, but there still were lines.
And as you say, the big full figured women aspect has been seen as the ideal for almost all of history. A figure girls only begin to develop in the later stages of puberty and post-child birth. The post-child birth part is important because having children too early in life can seriously damage your bone structure and body in ways that we can barely deal with now let alone back then. They still did out of necessity a lot of the time, but to attain the "most attractive form" it would need to be done much more delicately.
Some of the oldest art we have of attraction shows thicc ass bitches, and most men in their heart of hearts still love them that way (proper thicc, not fat "thicc") regardless of their own personal other preferences. Its instinctual lizard brain shit to be attracted to the signifiers of healthy birthing, which tiny barely old enough girls rarely possess even a fraction of.
Its honestly a really deep and interesting chunk of history and biology, culture and norms, but instead is always boiled down to "history was pedo" simplicity.