There is no way to escape the conflict with Islam by leaving Afghanistan or leaving Iraq. Now that is not only delusion and it is not something that will have long term consequences, it is something that would have almost immediate consequences. That is the fundamental problem of our period. That this is a war against radical Islam that has to be won.
You can't say fairer than that. Henry the K has been, in my opinion, the best theorist of international relations practicing during the last 50 years. Whatever his other shortcomings may be, McCain clearly "gets" Kissinger's point. No leading Democrat seems to.