dave2008
Legend
Of course we don't know that in 5e. Greater gods could be so powerful that powerful demons and devils are nothing to them. We just don't know. However,...But the gods can only do so much, because even if they are 10x as powerful as the most powerful demon, there are 12 demons working together to kill the god, and a horde of lesser demons to fight the god's angels.
...much like you I don't even use the blood war in my worlds. There are many flavors or evil, but its the entities of good and their faithful that keep them at bay, not a war among fiends.But hell, in my worlds, the Blood War isn't a thing, and the fiends/demons (all fiends are just called demons or fiends, when referring to the creature type, there is no "a fiend for every alignment of evil" diagram) are either instead at war with the beings of the Far Realm, or are simply a simmering pot of danger that could end the world if things go really bad and the wrong seals get broken. (Sometimes its the Unseelie Fey who are holding back the tides of cosmic horror, but it's always a group that is either evil or is seen as a threat to Free Folk)