If Hacker News is about the tech industry then we need to see the tech industry clearly, warts and all.
We cannot run away from it. We cannot memory hole it.
More importantly, the issue isn't whether people are boo or yay; it's that both the boo comments and the yay comments are repetitive, nasty, and boring...keeping in mind that something can be both boring and intense at the same time. Since that's what we're trying to avoid here, we should avoid it in this case as well.
The only other place to discuss it are the one million threads on reddit, where all the top level comments are bots. Again I agree with your points, but not your conclusion.
On HN the idea is we want some, but not too much, discussion of such issues, and for the discussion to be intellectually curious rather than flamingly indignant. For the first point to work, we can't have too many threads; and for the second to work, the threads we do have need to be based on more substantive articles (and events).