"If there was no Islam there would be no Islamic extremists."
True. In it's own way. Just as true as ...
If there were no dodoes they wouldn't have become extinct.
If there was no food there would be no starvation.
If there were no people there would be no over-population.
If there were no trees there would be no deforestation.
If there were no sun there would be no sunstroke.
If there was no life there would be no pain.