Always looking for excuses.
Well, if you can’t hack it you should find out soonest.
As to minority attendance, listen to TSowell. He has long held that corrupt/racist policies like affirmative action and racist practices like “preference” set up minorities. A tough school is not gonna go easy on you ‘cause you are a token. Tough schools, ones that truly graduate STEM students, need to maintain their standards as a bad STEM grad can kill people.
Putting minorities into these schools purely to create a rainbow is likely to put someone there who was either not really interested or prepared. What was their high school really like? So, they drop out.