>>12306633well yeah, u are correct
There were some Darwinist aspects which were controlling him, but he had to use his dream in order to justify to himself the mass genocide. We as humans use coping mechanism
Same pattern can be noticed in Berserk when Griffith decided to sacrifice the band of the hawk. He did it in order to achieve his dream of having a shining kingdom, at least that's what he thought, while in reality he was fulfilling a prophesy about a coming dark age.