> I don't buy that speculation. Until 1998 (the year Google was founded), a majority of Americans disapproved of interracial marriages. If you think they were like "yeah, blacks marrying whites gives me the heebie-jeebies" but were nonetheless free of discriminatory mentalities when it came to hiring, promotions, etc., I don't know what to tell you.
I was quite clear that I don't believe discriminatory mentalities disappeared, but if you think that discriminatory hiring practices _didn't drop precipitously_ in the '60s-80s, I don't know what to tell _you_.
Anyway, I don't know where you're getting that 1998 figure, but Gallup[0] says the last time a majority of Americans disapproved of interracial marriages was 1978 (two decades earlier than your citation) and more Americans approved than disapproved sometime around 1988 (Pew also agrees with this figure [1][2]) (note that there are 3 categories--approve, disapprove, and no opinion).
> External forces have impacts on marriage rates: people are more likely to put off marriage if they are financially insecure, incarceration breaks up marriages, etc. Unless you're positing that black people just want to be married less than white people (which is an extraordinary claim that requires extraordinary proof), the cause must be external.
First of all, being financially insecure isn't an external force, it's a state--specifically it's the state we're trying to approximate. So if you're going to justify household incomes as an indicator of financial security, then it doesn't make sense to argue that it depends on financial security. It's simply a bad metric and you should find another one to argue your case.
> Skin color is not a "proxy" for lived experience. It's a determinant of lived experience in a country that treats you differently based on your skin color, independently of your socioeconomic status.
I'm sure it's a determinant for some kinds of experiences, but that doesn't tell us
1) how well race predicts those experiences
2) what percentage of total human experiences are predicted by race
3) how significant these experiences are compared to other kinds of human experiences (for example, do you really want to argue that Asian Americans whose ancestors have lived in the U.S. for 8 generations have more in common with first generation Asian Americans than with 8th generation white or black Americans?)
4) whether the predictive power holds true as true for minority Harvard candidates as it does for minority Americans generally
So I say again, the notion that racial diversity will produce a meaningful diversity of experiences for Harvard's student body is _at best_ an extraordinary claim that requires extroardinary proof.
[0]: https://upload.wikimedia.org/wikipedia/commons/9/98/Public_o...
[1]: http://www.pewsocialtrends.org/2012/02/16/chapter-4-public-a...
[2]: http://www.pewsocialtrends.org/wp-content/uploads/sites/3/20...