I don't worship any kind of demon, but Meridia is not that bad.
Daedra aren't neccesarily demons. In contrast to aedra (our ancestors, as the chimer saw it) daedra have nothing to do with the creation of tamrielic peoples (except Azura in dunmer people). True, lots of daedra are evil, but not all of them.
Yeah, probably worth dragging out the Monomyth and explaining this one a little more.
In the Elven creation myths, they're the literal descendants of the gods (hence, aedra). While the human creation myths state that the mortal races were created by the gods.