There is this mental creed that to reach something really better, a phase of total purge is an absolute requirement, and the resulting gap between the situation once everything was "completely cleaned" and the wonderful world of "everything is fabulous for everyone now" will spontaneously happen out of the sheer expression of the virtuous dynamics then put as new foundations.

Possibly in such a mindset it’s impossible to envision that destroying everything indiscriminately will generate a more challenging situation. One from which it will be far harder to build anything. And which will be far from leaving the world with more pure innocent souls willing to construct a better place for everyone. It won’t percolate into their conscientiousness that the process is just most likely going to create more traumatized people full of fear on the one hand, and people accustomed to impose unilaterally their cruel point of view with violent means on the other hands. And that none of this will be a fertile soil to foster cooperation and trust, things without which humans are unable to create anything worth lauding.