Rudy does not want to surrender to al Qaeda that killed 3000 of our innocent civilians and wants to behead us all for being Americans. Ron Paul wants desperately to surrender to them and sees them not as a threat, much like those who thought Hitler was not a threat to the world.
If the threat to us is so great, why is our leader leaving the borders open? (Which gives those Islamofascists who want to behead us a way to get in through the backdoor) Logically, either the threat is not so great, or Bush doesn’t seem to care much about national security. Which is it?
And he's a pro-abortion gun-grabber. Those issues are more important to me personally. Thompson, Hunter, McCain or Romney would be just as good as Rudy on the WoT anyway. I really cannot conceive of any non-fanboy reasoning to support Rudy.