For what it’s worth, you seem to be agreeing with the person you replied to. Their main point is that this break down happens primarily because people identify as Rationalists (or whatever else). Taken from that angle, Rationalism as an identity does not appear to be useful.
In other words, your question ignores so much nuance that it’s a red herring IMO.
As others have pointed out, the fact that you would like to make light of cities being decimated and innocent civilians being murdered at scale in itself suggests a lot about your inability to concretize the reality of human existence beyond yourself (lack of empathy). It's this kind of outright callousness toward actual human beings that I think many of these so called "rationalists" share. I can't fault them too much. After all, when your approach to social problems is highly if not strictly quantitative you are already primed to nullify your own aptitude for empathy, since you view other human beings as nothing more than numerical quantities whenever you attempt to address their problems.
I have seen no defense for what's happening in gaza that anyone who actually values human life, for all humans, would find rational. Recall the root of the word ratio—in proportion. What is happening in this case is quite blatantly a matter of an inproportinate response.
I'm struggling to follow, sorry.
I certainly agree with you that a false accusation is not worse than the actuality (I don't know why you brought up "possibility") of mass murder. Very far from it. But why does that imply that it's better than the defence of mass murder? After all, the "defence" here is not engaging in the practice, it's just saying something like "I condone that". Or did you think that by "defence" I actually mean committing the mass murder?
The reason that emotive false accusations are very, very harmful is that they can cause mobs to murder in (supposed) retaliation. Here's a story about someone in the UK who was killed by a riled-up mob, due to a false accusation:
https://www.dailymail.co.uk/news/article-3535839/Father-42-k...
One ought to be very, very cautious about making accusations that can rile up mobs.
Regarding your other comments directed at me personally, such as "you would like to make light of cities being decimated and innocent civilians being murdered at scale", "inability to concretize the reality of human existence beyond yourself", "outright callousness", "approach to social problems is highly if not strictly quantitative", "you view other human beings as nothing more than numerical quantities", they are completely unfounded speculation on your part. They are rude and completely inappropriate for a reasoned discussion.
Regarding proportion, do you believe the actions of the UK and USA against Nazi Germany were "proportionate"? Proportionate to what? What did Nazi Germany ever to do the USA?
And yes, I have some. One is that false claims of genocide are equally reprehensible to denying true genocide. But I'm not sure why my beliefs are particularly relevant. I'm not the one sitting publicly in judgement of a semi-public figure. That was voidhorse.
Did you want to discuss in more detail? I'm happy to, but currently I interpret your comment as an attempt at sniping me with snark. Please do correct me if I've misinterpreted.
Still, for the record, other independent observers have documented the practices and explained why they don't meet the definition of genocide, John Spencer and Natasha Hausdorff to name two examples. It seems by no means clear that it's valid to make a claim of genocide. I certainly wouldn't unless I was really, really certain of my claim, because to get such a claim wrong is equally egregious to denying a true genocide, in my opinion.
I thought these people were the ones that were all about most effective applications of altruism? Or is that a different crowd?