You can have a "diverse" society with lots of murder if you really want it.
You can also have have your pathological, sick Jew-hatred and fetish for the Palestinians if you want it.
I'll also add that the clearly intentional echoes of Holocaust imagery in this disgusting stunt make it even more egregious and sinister. Viewing the Jews as the "new" or "real" Nazis, and the Palestinians as the "real" Jews is morally reprehensible and reveals much more about the believer than ever about the Jews.
But you cannot have those two things and a peaceful, liberal democracy.
Make your choices and then live or die by them.