The real discrimination is continued legacy and athletic admissions which artificially inflate the number of white students (discriminating against Asians and other minorities).
This is a question we’ve gotten quite a bit (second author here).
A good intuition is that if it were easy to do it already with any background, professional studios wouldn’t be spending so much money on green screens. Background subtraction is pretty poor in general without very constrained setups. Our goal is really to provide professional quality without any of the equipment.
43% of white students at Harvard are legacy, athletes, or related to donors. Source: https://www.nbcnews.com/news/us-news/study-harvard-finds-43-...