@elbanditoroso Allow me a response…
“to respond anthropologically to your question about why men often prefer larger breasts…”
You use the word anthropology but give an answer rooted in biological essentialism, which is not longer accepted as a lens in contemporary anthropology.
“It’s back to basic survival anthropology – cave man days and before.”
Again, what you’re talking about is not anthropology but, more specifically, evolutionary biology. And when you say ‘cave man days’ (which should really be cave people, because men were not the only ones there.), I would appreciate a specific society that you have in mind because there were different groups and not all had the same way of living. I would also, to be understand you, appreciate a time range.
“Women with big breasts were considered to be more fertile and more able to care for the broods of offspring that a tribe required in order to survive.”
Cave people knew squat about fertility and how that works. They understood breasts are used to feed the young and assumed those with big breasts would do so better. Some contemporary studies show that women with hourglass figures (small waist, bigger breasts when compared to waist, not necessarily huge breasts, though) have more hormones, making them more likely to reproduce but they’re questionable. As you look around, you note that breasts of all size have made it to our time through the millenia because one’s ability to breastfeed has nothing to do with size of breasts.