Attempts to claim that your side is somehow superior and not subject to the same human evils as the other side are never true, and just encourage your own people to commit evil - they are justified and the other side is evil, of course. Somehow everyone thinks that, which should tell you something about the truth of it. But of course for your side, it's actually true!

One classic method is to try to tie it to scripture, but people behave like people regardless of their scriptures, and members of every religion has done plenty of horrible things in the name of their god. The Christian Gospels are about as pacifist as scripture gets and yet many horrible things have been done in Christianities name - often justified because the victims were non-Christian.

There is plenty of religious-sanctioned violence in the Old Testament, including in the Torah, and plenty of violence against non-Jews today - so much that it's a bit bizarre to overlook it.