First off I'm a firm believer in just be chad, so I think the reason white and black people are more attractive on average to women than Indians and East Asians is because they have more chadish(basically masculine) features on average. This theory will focus on why black and white people have these traits more often. I have some other far more plausible theories n why this is the case, but I just came up with this theory that I thought was interesting. We know soy causes a drop in testosterone in men(https://pubmed.ncbi.nlm.nih.gov/15735098/), and low T can lead to it being harder to gain muscle mass, growth stunting, and lower bone density(https://academic.oup.com/jcem/article/84/6/1966/2864549). East Asians on average are shorter(https://en.wikipedia.org/wiki/Average_human_height_by_country), have a lower bone density (https://depts.washington.edu/bonebio/bonAbout/race.html#:~:text=The%20bone%20density%20is%20quite,little%20bit%20higher%20than%20Caucasians.), and have less muscle mass(https://academic.oup.com/jcem/article/94/12/4696/2596390). Soy, miso, soy sauce, and tofu(which are both made from soy) are all often eaten foods in east Asia that have been eaten for thousands of years(soy-https://en.wikipedia.org/wiki/Soybean#History ---- tofu-https://en.wikipedia.org/wiki/Tofu#:~:text=Tofu%2Dmaking%20was%20first%20recorded,dynasty%20some%202%2C000%20years%20ago. ------ soy sauce- https://en.wikipedia.org/wiki/Soy_sauce#:~:text=It%20is%20considered%20to%20contain,cooking%20and%20as%20a%20condiment. ------ https://en.wikipedia.org/wiki/Miso). Could it be that thousands of years, and many generations of consuming multiple soy or soy-based foods has decreased their testosterone levels which caused them to develop these less masculine features?