Only that "monocultural" is a dog whistle for "Asian". If you have a plausible alternative hypothesis for what that could mean, I'm all ears.

See also: https://en.wikipedia.org/wiki/Students_for_Fair_Admissions_v...

monocultural means all the students spent all their free time doing the type of stuff that helps get you into elite institutions and none of their time doing other things. By hyper focusing on a few activities that are known to be liked by admissions you create a monoculture.

You are interpreting “cultural” too narrowly. It could also just mean that if you only focus on grades you get the kind of people who get good grades—-and not the people who don’t do as well grade wise, or have other priorities and bring a diversity of experience to campus culture. This doesn’t have to be a dog whistle for anything racial.