(I've had to come in on http://207.103.108.101/threads.cfm, and that doesn't allow logging in properly)

I think the idea might be that if you say people have been misled you are saying they are fools, and that their motives are unworthy. I can see how that might seem that way, but I disagree with that assumption.

A more recent analogy to the attitude expressed in that last verse is Muhammed Ali saying in explanation of why he wouldn't fight in VietNam "No Viet Cong ever called me a Nigger" - ie, there's a struggle at home that should be seen as more important.

I don't think that was insulting to people who were fighting, and nor do I think that the Vietnam Vets who demonstrated protesting at the war and denouncing it were insulting their comrades in arms. But no doubt there were people who saw it that way.