As the saying goes, those who obtain the Dao have more assistance, while those who lose the Dao have little assistance!
Although the Demon Emperor has proven the Dao for many years, his actions have touched upon the interests of too many powerful beings.
Setting aside the Witch Clan, which is an old adversary and a nemesis of the Demon Clan, this is self-explanatory.
But when the Demon Emperor did not yet possess the power to suppress all dissent, he prematurely showed intentions of annexing the Dragon, Phoenix, and Qilin Clans, which naturally displeased Ancestor Dragon and the others.
Otherwise, given the nature of these elders, out of respect for everyone being part of the Primordial Lineage, they wouldn't have harbored killing intent towards the Demon Clan, and Biluo wouldn't have easily contacted the Dragon and Phoenix Clans to form a defensive alliance!
