In other words, it was not really about which policy would produce what results. It was about personal identification with lofty goals and kindred souls.
The ostensible goal of peace was window-dressing. Ultimately it was not a question whether arming or disarming Britain was more likely to deter Hitler. It was a question of which policy would best establish the moral superiority of the anointed and solidify their identification with one another.
"Peace" movements are not judged by the empirical test of how often they actually produce peace or how often their disarmament tempts an aggressor into war. It is not an empirical question. It is an article of faith and a badge of identity.
Yasser Arafat was awarded the Nobel Prize for peace -- not for actually producing peace but for being part of what was called "the peace process," based on fashionable notions that were common bonds among members of what are called "peace movements."
Meanwhile, nobody suggested awarding a Nobel Prize for peace to Ronald Reagan, just because he brought the nuclear dangers of a decades-long cold war to an end. He did it the opposite way from how members of "peace movements" thought it should be done.
Reagan beefed up the military and entered into an "arms race" that he knew would bankrupt the Soviet Union if they didn't back off, even though arms races are anathema to members of "peace movements." The fact that events proved him right was no excuse as far as members of "peace movements" were concerned. As far as they were concerned, he was not one of Us. He was one of Them.
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