You are 100% correct.

I think OP agrees with you too, but the question is more around the “why”. Once, we were also like animals, and didn’t have clothing. To the animal brain, things like large breasts or wide hips means better reproduction. Did we start to cover up because it was cold and we got sick? It makes more sense to me that we started for practical reasons, and the hyper-sexualization came later, probably with religion.

Today, women are sexualized to an insane degree, and expanded to any number of inane body parts and not just breasts.

I think OPs question could also be phrased as “why did sex become so taboo?” And we might get a broader picture.