This is not to say that I haven't experienced racism in my career in technology. Shoot I have people turn me away because I went to college at an HBCU (Historically Black College & University). Yet, I don't think that was because I in this industry just those individuals bias and I know if there were more minorities exposed to the idea of being entrepreneurs then there would be far more in the valley.
Don't worry though I hope to be one of those that help with this problem
SN: for anyone who has never experience racism consider yourself lucky. True story: (mind you I am a well established ,for my age, government contractor.) After exceeding all of a clients expectations on a project I later had a co-worker come and tell me how shocked that a black person could code let alone do it well and that he thought I was only on the team as a ploy by the company to diversify. Then expected me to take that as a compliment lol. Now that's only one of many stories i can tell. Just my 2 cent