When we talk about politics, context matters. Someone like Yudkowsky doesn't believe stupidly racist things, like a KKK member or turn-of-century politician, or even modern anti-immigration people. Bond's targeting something much more subtle.
The point is that here you have a man who naively keeps trying to push the dialogue "beyond race" ("forget race"), in a forum where if you scroll down to the comment section, you'll see Jeff H. with 5 upvotes defending Watson's racist remarks, with Epiphany at 0 upvotes talking about the cultural reasons why IQ tests fail.
It's about the framework, and what it allows, and about what allows the people championing it to be naive or indifferent about what it allows. Someone discussing coldly and clinically the pros and cons of rape isn't a rapist, but there's something else about someone who can have discussion coldly and clinically. Some people take pride in their level-headedness about tough topics, others would take it as a signal of their lack of empathy with the victims, and the signal this sends to people who do feel passionately about it.
And so Yudkowsky will discuss race in this goofy aloof kind of way- "maybe black people are intellectually inferior, let's talk about it, does it even matter in the end?", and some people will believe that this is the right kind of coolness to produce neat solutions, and others will believe it robs the steam off of the emotional connection that would engage people in political action for change.
You have to suss this kind of thing out, and if you plain don't want to believe me that there's something enabling towards racism and sexism and other various supremacist ideologies in the LessWrong ecosystem, you don't really have to.