A common exchange on RF goes something like this:
Critic: Religion X promotes problem Y.
Apologist: Well many things promote problem Y, you can't blame religion X.
I've been thinking for a while that the apologist's response is some form of fallacy, but I couldn't place it. Now I'm suspecting this is the "nirvana fallacy"?
Thoughts?
I never make the argument in the OP, but often make
"Icehorse: Religion X promotes problem Y.
Augustus: Well many things promote problem Y because it's human nature.
Sometimes its a response to the 'baseline of zero' fallacy (or the irrational optimism fallacy perhaps). The replacement for a belief is not 'no belief' but 'a different belief'. Many arguments implicitly assume that the replacement belief would result in zero harm (or at least far less harm), when there is no reason to assume that it wouldn't be worse (See the 20th C).
Sometimes it's a response to the fallacy that a war fought between people of different religions must somehow be 'religiously motivated', despite the fact that humans have always fought each other because we are violent species.
An easy example is 2 Mongol conquests:
Genghis Khan's Mongol conquests are generally not seen as being religiously motivated, just about power and glory.
Timur's Mongol conquests on the other hand are seen as being religiously motivated, despite his stated aim being to recreate the empire of his forebear Mr G Khan as was his birthright, simply because in the meantime some Mongols had converted to Islam after conquering some of the Islamic Empires.
Mongols, and steppes nomads in general, were known for their love for, and skill at, warfare. Just because they adopt one of the 'proper' religions, all of a sudden that is the overwhelming marker of their identity, rather than being a Mongol or a Steppes nomad.