The paradox of the paradox: there wouldn't be a paradox if the philosopher wouldn't be stuck in the logic of a limited model and a distorted assumption about growth.
Only because there exists the possibility that a movement can grow doesn't mean that it will grow.
Intolerance is also not real, like the war on hunger. There is no enemy, but instead there are people to feed.
This leads all to a simple answer that hides that 'let' s give them a chance' was driven by intolerance for socialists and communists, which should ring a bell.
People are so proud that they are allowed to hate the right enemy that they don't ask what those humans actually need to become friends. (Which doesn't mean apeacement!)
*edit: could the downvoters please leave a note and state where they disagree, please?