Rothbard blamed Britain for getting us into WWI & WWII, then blamed Israel for getting us into wars in the Middle East after the Israeli War of Independence. He literally said that in every war of the 20th century America and Britain were in the wrong, or more wrong, than any of our enemies. He blamed Israel for the Six Day War. And, of course, he blamed us for the Cold War, too. Rothbard blamed us (America & Britain) for WWI, WWII, the Cold War, the Korean War, Vietnam War, the Falklands War, the IRA's campaign against the UK, etc. Of course, Germany started WWI, WWII (with Japan), Stalin started the Cold War, the Communists (North Korea, Soviets, & Red China) started the Korean War & the Vietnam War (North Vietnam instead of North Korea), Argentina started the Falklands War, the IRA (with Soviet backing) started the Troubles, etc. He blamed Britain for Germany's invasion of Poland, and even blamed Finland for its invasion by the Soviets. Rothbard made DARVO (Deny, Attack, Reverse Victim and Offender) his only method of foreign policy analysis. He had a perfect record of claiming the exact opposite of the truth in these matters. There isn't a totalitarian regime whose propaganda he wasn't willing to parrot approvingly on this, whether it be Hitler's, Stalin's, Kim Il-Sung's, Ho Chi Minh's, Nasser's, the Junta's, etc. I've never seen any Rothbardian make the argument you cite about American economic might making us secure enough to withdraw from the rest of the world. Instead, his followers adhere with absolute loyalty to his demented foreign policy positions.