[N]AP was employed by separatists to attempt to assert that out-group non-retaliation was a rule for in-group cooperation. Jewish law, culture, and religion attempt to preserve separatism so that they gain the benefits of the host’s commons production, without paying for the normative commons. Just as Gypsies do, but gypsies keep the cost low enough, and appeal to our altruism enough, that the cost of extermination is more than we are willing to pay. Jews do not limit their parasitism, and perform it largely through externality or deception, and this is why they are, over the centuries, repeatedly retaliated against: because the cost has become high enough that hosts must.
This is not unknown since jewish authors discuss this problem openly.