He's wrong on most of the Defense thing. I've even excoriated him for it in posts here. I think he's very wrong on a couple of issues. Isolationism doesn't work. Neither does playing Globo-Cop.
People have discussed all of this before on these threads. This is nothing new.
Ron Paul is not an isolationist. He is supportive of the radical concept of unilateral free trade and diplomancy. That is the polar opposite of isolationism. In this regard, he is more “internationalist” than the interventionists.