I'm not saying the racism the author has experienced is right, it sucks, it's wrong, and I actually know how he feels because I have had similar experiences with race in my own life. But I have read A LOT of arguments on HN trying to downplay or outright deny racism in tech, when that black engineering leader at Twitter quit, and for the combative white people there, who seemed to refuse to deny that racism existed here, but sympathize with this white guy here, let me ask you this:

Why should sushi restaurants lower their standards and let this white guy into their established restaurant, just for the sake of diversity? Sushi restaurants are all for equality, but we would never want them to lower their standards and serve lower quality food right? Also, if this white guy really wants to get in, he needs to change his culture. That laziness, loudness, and lack of respect for tradition will never get him anywhere in the sushi world.