I can't speak to the "not addressed to you" portion of the GP's post, because I do believe than HN benefits from its open discussion format, that allows for both threaded discussion and open commenting. But, I would venture to say that it's quite deceitful, i.e. an "aggressive demand", to drop in what you apparently know (c.f. https://news.ycombinator.com/item?id=13354198) will be an analogy (this one here: https://news.ycombinator.com/item?id=13353366) that inspires "negative emotions" without providing any supporting arguments or information in the same post.
Rather than starting from a point that (you do seem to know) will be inflammatory, why not start from claims directly related to the topic at hand, and work your way up to the point where the logic of making the analogy is immaculately clear? In this thread, you start with a 'jump' (straight to the civil rights movement), and then trickle out the details in children comments [1,2,3,5] as to why your point is relevant, and why people should ignore their emotional responses [4,5] like you do. Inducing emotional responses in others with one's writing is inevitable -- do you actually want to convince people of why your point holds water (using something like the strategy I propose), or do you only want to evoke anger and get people turning away in a huff (what you've done in this thread)?
[1] https://news.ycombinator.com/item?id=13354048
[2] https://news.ycombinator.com/item?id=13353661
[3] https://news.ycombinator.com/item?id=13354108