Take your second paragraph and replace the word ISIS with "The USA". That is essentially their recruitment speech for their operatives in the rest of the world.
Checkmate.
We have our vision for what we want for the world and our nation, they have theirs. It's better for us if we win.
What a strange game. The only winning move is not to play. - WOPR (War Games)
You can kill people with violence, but an idea will only grow stronger.