Islam provides good justification for murder of innocents --the promise of reward in the next world for anyone dying in jihad against infidels.
While religious fever is a normal human trait, but a religious Jew has other things on his mind than Jihad. A person that is Jewish and gets somewhat fanatic, will spend all day long learning Torah or go to Uman for Rosh Hashanah. A Christian who becomes fanatic will spend his or her time in some soup kitchen. A Muslim who becomes fanatic blows up Jews and Christians. There is no parity here. Islam is a religion of peace only for Muslims that do not believe it. It is a religion of war for the Muslims that do believe in it and for their victims.
And today with the ease of manipulation of viruses, Jihad against the West becomes more of a practical possibility for Muslims in a fairly easy way.
My recommendation would be to send in a few Jesuits. In fact that might be the only practical advice I could give. I was thinking if perhaps to send in a few Mirrer Yeshiva students but that seems less practical. Thought it might be desirable. After all the best option would be to teach them Torah. But Jesuits have had traditionally more success in that direction.