Well, I think it is the same reason that induces a misguided minority among Hindus to join extremist outfits like RSS, VHP, or Bajrang Dal. Paranoia and persecution mania, carefully nurtured by motivated evil ideologues who inculcate resentment against real or perceived historical grievances in the impressionable minds of the victims (yes, victims)who then join the extremist band wagon like lambs led to their slaughter, to taken revenge or to 'correct' historical wrongs....
It is the same story everywhere. And, it is not restricted to some Muslims or to some minority among Hindus..
