This is actually fake news. The letter does not say that they will enroll students based on skin color; it talks about a goal of proportional representation, but doesn’t contemplate using race as a factor in qualifying students for enrollment in those classes.
..”it talks about a goal of proportional representation,..”
So what do you think “proportional representation” means? 13% with brown eyes, 17% over 6 foot tall, 32% men and the rest “whoever excels in the 100 yard dash?”