>I'm not even sure what to say. It does not make any sense to me what so ever, but maybe I'm just weird, old fashioned and dull.
Sorry, this is a new concept, I'm still working on it and I didn't really explain it well.
I'll switch it around; The humans will be the noble divided pantheists, maybe they like African Vodun which other people in the threads have talked about which I also like, but they also have to worship this asshole even if they don't like him. In fact, it doesn't have to be worship, just sacrifice.
However, the MONSTERS can all be monotheistic. The King in Red is the only God that cares about them, because he created all of them, possibly through disgusting sex with mortal animals and such. Female monsters brand themselves with his mark to become his spirit wives, male monsters crop their hair and practice bloodletting, swearing loyalty and to fight to the death for his cause.
Humans and the other normal mortal races worship nature spirits, kind ghosts, weird old men that live in mountains that make flowers grow when they touch them. These gods are physical, safe, helpful, and usually benign.
Only the King in Red is seemingly omnipresent, though certainly not all knowing or all powerful, just capable of influencing the world. Spreading clouds of miasma or causing natural disasters to those who refuse to give a yearly sacrifice on the night of sacrifice. Sending his monsters (who all get a bonus HD on that night) to destroy towns and cities that mock him or refuse to give to him, but things easily escape his notice.
Hopefully that's a better and more complete job of explaining why it's monotheistic. Or maybe it isn't, and he's just the big bad prime god of a pantheon, that works too.