He told you these people were stupid.
These entities don't even exist, yet these dumb fucks are willing to sacrifice the entirety of their humanity (and other people's lives) in exchange for their dark heart's desires. Evil people doing evil things. Been that way since the beginning.
For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms.