So, today Israeli forces killed a Hamas leader, the idea being if they murder a prominent leader of Hamas they will damage the movement and will thereby be able to reach peace with the Palestinians.
We believe that if we kill Osama bin Laden (or Saddam Hussein) we'll cause their movements to quit.
Just think about it. If these people believe they're right, and righteously so, killing their leaders will simply inflame them. Imagine, if our leader was killed by them. Would the US be crippled? No. Even if (especially if) it was our present leader, the US would be more empowered, more resolute. A thousand heads would replace the severed one.
As in the Middle East, so here, so anywhere.