Note that you're just saying a generality, without addressing the comment you're replying to at all.
Sweeping atrocities under the rug is also very common, then trying to project one's own failure to speak out against them as some kind of moral failing of those who do.
> Every powerful state relies on specialists whose task is to show that what the strong do is noble and just and, if the weak suffer, it is their fault. In the West, these specialists are called "intellectuals" and, with marginal exceptions, they fulfill their task with skill and self-righteousness, however outlandish the claims, in this practice that traces back to the origins of recorded history.
-- Noam Chomsky
Just the fact that this discussion was barely penalized, is bursting with accusations of "hysteria" (that also has tradition) and "racism" and "flamebait", while these for example were very harshly penalized, speaks volumes:
https://news.ycombinator.com/item?id=20318279
https://news.ycombinator.com/item?id=20315905
I think grotesque is a good word for it:
https://www.youtube.com/watch?v=dsoImQfVsO4&t=33m27s
> One of the greatest advantages of the totalitarian elites of the twenties and thirties was to turn any statement of fact into a question of motive.
-- Hannah Arendt, "The Origins of Totalitarianism"
This is exactly the tactic, and the pattern in hundreds of HN discussions: make accusations one doesn't need to prove, and the accused cannot disprove. "You just say this because you hate X", or "you don't say this because you think it's true, and despite it possibly offending someone, no... this is flamebait, my inability to address your argument on its merits is actually your intention". But of course it's verboten to be offended by any of that.