The civil war wasn't beneficial to anyone in China in the long term; any loss was a loss for China.
With the support of the various Dynasties, the factions in the northern side felt incredibly proud and confident, and they didn't even place Great Qin in their eyes anymore.
With the various factions added together, their people numbered in the tens of millions, and let alone Great Qin, they wouldn't fear even multiple Dynasty Legatees. That was how confident they felt.
However, their weakness was that they were unable to gather all of their forces together.
Even though Great Qin was weaker than all of them collectively, its military might wasn't something that any of them could individually rival. This was something that they all knew.
The Ancient Clans, the oldest factions in China, also knew this, and the ten or so elders gathered to discuss.