The futility is a result of rewalking well-worn trails and thinking that nobody has ever been there before. So with such perennial conceits as unilateral disarmament - it isn't new, it's as stupid as it ever was, and its results are likely to be the same now as they always have been in the past - a de-clawed cat let loose in the jungle quickly finds that moral righteousness makes for poor defense and turns its possessor into a snack.
One can outgrow these conceits either by finding out the fruits of someone else's hard-earned experience or learning the hard way oneself. Liberals tend to insist on the latter, and the worst of them refuse to learn at all, explaining away the insufficiencies of their sundry theories by deflecting the blame elsewhere. This sort of liberal resembles a young person who refuses to grow up, and it isn't accidental.
would make a great bumper sticker - the length of the bumper ;o)