These are the people who slit the throats of airline stewardasses with box cutters and then flew airliners filled with men women and children into skyscrapers filled with thousands of civilians.
You are not going to get anywhere with them no matter what you do short of killing them.
I would not expect a rabid dog not to bite if given the chance. Likewise, I do not expect Al Qaeda to refrain from killing an "American infidel" whenever they have the chance.