I think the guts of what you're claiming is: Shalizi's views on intelligence are a consequence of his political views; either his political views are not arrived at rationally, or the way his political views have given rise to his views on intelligence are not rational, or both. -- That could well be true, but so far what you've given evidence for is simply that he holds one particular set of political views. How do you get from there to the stronger claim about the relationship between his views on the two topics?

At least part of it was reading his 'Statistical Myth' essay, being skeptical of the apparent argument for some of the reasons Dalliard would lay out at length years later, reading all the positive discussions of it by people I was unsure understood either psychometrics or Shalizi's essay (which he helpfully links), and then reading a followup dialogue http://vserver1.cscs.lsa.umich.edu/~crshalizi/weblog/495.html where - at least, this is how it reads to me - he carefully covers his ass, walks back his claims, and quietly concedes a lot of key points. At that point, I started to seriously wonder if Shalizi could be trusted on this topic; his constant invocation of Stephen Jay Gould (who should be infamous by this point) and his gullible swallowing of 'deliberate practice' as more important than any other factor which since has been pretty convincingly debunked (both on display in the dialogue) merely reinforce my impression and the link to Gould (Shalizi's chief comment on Gould's Mismeasure of Man is apparently solely "I do not recommend this for the simple reason that I read it in 1988, when I was fourteen. I remember it as a very good book, for whatever that's worth."; no word on whether he is bothered by Gould's fraud) suggests it's partially ideological. Another revealing page: http://vserver1.cscs.lsa.umich.edu/~crshalizi/notebooks/iq.html I can understand disrecommending Rushton, but disrecommending Jensen who invented a lot of the field and whose foes even admire him? Recommending a journalist from 1922? Recommending some priming bullshit? (Where's the fierce methodologist statistician when you need him...?) There's one consistent criterion he applies: if it's against IQ and anything to do with it, he recommends it, and if it's for it, he disrecommends it. Apparently only foes of it ever have any of the truth.