In our local organizing against the impending war, those who are isolationists, Buchananites, etc. have not shown up at any of our meetings yet. During the NATO attacks on Yugoslavia, I asked the same question to Carrol, & he told me that drawing up a brief principle of unity with emphasis on the importance of anti-racism & using agreement to it as the criterion of inclusion (so to speak) would help organizers exclude the ideologically committed right-wingers, without excluding ordinary not-yet-so-politicized Americans who might have isolationist impulses (= the kind to whom Michael Moore for instance has tried to appeal) today but could move onto better ideas in the process of activism.
Yoshie