[quote=@Etcetera]
<Snipped quote by Multifarious>

May I ask why this culture is so anti-interdimensional beings?
[/quote]

There have been so many attempts by things out there to finish the genocide that the Kalsimer tried so long ago. It's purely a matter of maintaining our continued existence's secrecy. Meaning, no one knows we live but us. Staying hidden has been the only way we've been able to know peace ever since we stepped foot outside our home universe.