Those who say there isn't anything worth fighting for also tend to be the same people who see equivalency in all cultures and societies. Hence, there is no "right" or "wrong" society, only "diversity" of opinion. The inability to distinguish evil from good, and then the failure to fight evil in the world, is actually more dangerous than a policy of "pre-emption" in fighting evil.
Agreed. I just pray that we are collectively wise enough to select political leaders who can identify evil and know how to go after it. I'm afraid it's something of a crap shoot when I consider they kinds of people we have elected during my lifetime.