Really? I find it very easy. Racial discrimination is wrong. Period. You're pointing to a social discrepancy and saying "eh, maybe racial discrimination is okay because it might make the demographics more equal." I urge you to fully consider what this entails. If we want to live in a multicultural society, we must accept that different groups have different values, preferences, and practises. We choose to allow groups to be different, so we must accept that this means groups end up in different places.

Asian parents in the U.S. exhibit high propensity to encourage that their children study more than all other ethnic groups(https://www.sciencedaily.com/releases/2011/05/110505103345.h...) (data here: https://www.bls.gov/tus/). Unsurprisingly, Asian children grow up to earn more than all other ethnic groups, and display lower levels of crime. In other words, this cultural difference results in an income and wealth disparity.

I am not of Asian descent, and I believe that a child should not be studying their childhood away. Who is right? Should I be making my children study 13 hours every week? Or should the Asian parents have their children study less? After all, if the existence of a disparity alone is morally wrong, one group must bend.

Or can we accept that different groups are different. This is indeed the premise behind multiculturalism. This will result in disparities between groups as a necessary and healthy outcome. Not something to be feared, but something to be celebrated as an expression of free will and cultural autonomy.