If bin Elvis is killed, somebody else will simply take his place, and on and on, because terrorists are BAD! They LIKE to be terrorists, and they all want the top job - probably so they don't get picked to be the next martyr.
You make a powerful argument against capturing and executing Osama. You're not a member of Al Quida, are you? They also don't want their leader captured and executed.. ----
By your logic, the cops shouldn't try to capture any gang leaders - - and the feds shouldn't have wasted time prosecuting Al Capone --- because "somebody else will always take his place."
Unlike you, I believe in making Osama pay for killing all those people. I believe in making criminals pay for their crimes -- especially somebody who created hundreds if not thousands of widows and orphans on 9-11.