Though I don't have data to back up my point, my impression is that there are actually a lot of Asian tech founders. (a well known example is Yahoo Co-founder). If you consider the population ratio to tech founder ratio, asians are probably doing a better job than some other non-white groups. Of course, if you compare the over-presentation of asians in elite universities with their presentation in startups,there could be a lot more asian tech founders. (i'm asian too)