No, I'd say even if they're directed at only that segment that he sees as the 'technical elite', it's hard to see much value in that kind of analysis [which in any event isn't much different from Cooper's hero Marcuse]. But you're just like Cooper here, making up nonsense about lots of people saying hateful things about the victims of 911. That's just nonsense, sounds like the kind of garbage one would expect Horowitz to say, not a clearheaded left activist/thinker.
"It was at the mass meeting in New York of antiwar activists that the coalition was destroyed in the weeks after 911, because a minority refused to call for the 911 killers to be brought to justice under international law, since they argued that imperialists had no right to call for such justice. It was a sickening set of arguments then and hateful in the extreme. "
You attribute 'hate' to the political argument. I see a political position that you disagree with alone. There is no evidence of hate that you've presented.