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Shooter is an authoritarian, proto-fascist. Why does anyone engage him? -- -Mona-
Actually he's a delusional paranoid and quite possibly has a chemical addiction or three, but that's beside the point.
And engaging (well, really refuting and mocking) his non-arguments is a social and cultural imperative. When someone hangs a "Kick Me Here!" sign on their groin, even a metaphorical one like shooter242's, one feels an obligation to do precisely that.
Its just expected.
In that sense, we'll see if the public and media do the same with the one Senator McCain just hung on himself (a la, his "choice" for VP). I suspect it'll be a mixed bag and the Senator will make noise that it wasn't his choice after all.