Jesus did rebuked the small faith of disciples who failed to cast out demons. But nevermind.
It is argued that the spirits are legalistic and only occupy where authorized.
With free will comes the ability to work with God or his enemy.
There is a theory that humans, with our free will, will settle forever who rules all, The Creator or his Enemy.
It does feel like our choice to follow Good or Evil is much more consequential than our individual souls.
Eat a dick.
You left out that it is laughable. Something to joke about and obsess with rather than be focused on fear.