This is wrong. You cannot claim to have knowledge about the Daimons from Belutaterra while simultaneously claiming that the Daimons on Dwilight are exactly the same and have come to this conclusion rationally.
You and seemingly everyone else are completely missing the point here.
tMP as a philosophy is a reaction to the BT invasions - the horror and destruction visited on humanity by nonhuman beings of great power. It has been explained and rationalized (to death) as such elsewhere by Bedwyr and De Legro.
The result of this is the belief that anything that is both sentient and nonhuman is probably a threat to humanity. There is no need to stick a Zuma peg in a BT shaped hole. Are they sentient and nonhuman? Yes? Then they are probably evil, irregardless of their similarity or lack thereof to the daimons of BT. They could be moon men from Theta-12Z and we could still rationally start with the assumption that they are evil, simply because the entire range of experience with sentient nonhumans in BM suggests that they will be.
And here's the really important part, that everyone has missed thus far.
No one can prove beyond all doubt that they are NOT evil. Sure, they have been quiet neighbors so far. They don't attack people unless provoked. They appear to be rational.
None of that proves anything. It would still be rational, even KNOWING all that, to make an assumption that, being nonhuman, they probably don't have our best interests at heart, cannot easily be understood by ascribing to them human traits such as reason and emotion, and are probably motivated by things that we do not and possibly cannot comprehend. Therefore, they may pose a threat in spite of their veneer of civilization, as their motivations are literally incomprehensible to us mere humans. They leave us alone for now. However, we don't know why. We don't know what they really think of us, and we don't know that they won't change their minds suddenly and without explanation and start a jihad against humanity.
Anaris has it more or less right here, but I'm going to post this anyway.