Another view might be that they are playing the long game, and they think that increasing the pool of minority founders is +++ev for them. This is my personal view.
My personal take on this issue is that a big challenge in funding African American tech businesses is that the deal flow starts seeing a bottleneck before many of these potential founders are even college age. This has been discussed on HN before (I will try to find the link and post it in a reply).
