This ruler would further strengthen the family, perhaps even extend its governance over the world far into the future, but if the Fire Emperor replaced him, then the family would face extinction in the shortest of time—an undeniable fact.
Thus, no matter what, they ultimately did not let the Fire Emperor become the heir, because no one wanted to become the culprit responsible for their own family's annihilation. Such an outcome was unbearable for anyone; regardless of past contributions, they would be completely obliterated from memory, and all people would remember was that it was oneself who wiped out the family.
The family was preserved, albeit at the cost of a catastrophic war, a consequence of the initial blunders of Emperor Honghuang, but at least it was considered better than the complete disappearance of the family.
