despite islamic terrorism literally, by definition, being right wing.
It's neither right-wing nor left-wing. This sort of claim always strikes me as fairly cheap politics by people on the left. 'When people do bad things it's right-wing, when they do good things it's left-wing.' etc
(The UN does not, in fact, have a 'right to defend itself', nor to slaughter Jews in brutal pogroms, nor to teach generations of children that the greatest thing they can do with their lives is detonate a suicide vest in a crowd of Jewish civilians using the money of the international community)