Those so-called people who managed to survive a Hongmen Banquet usually needed two things to go their way.
First, their faction had to remain stable after their death, and their successors had to avenge them.
Second, their enemies had to be clever, and they couldn't be under the same government.
Third, their faction had to be powerful, or the enemy hosting the Hongmen Banquet had to be weak.
Liu Bang and Xiang Yu, for example, were leaders of separate factions. If Liu Bang died, there would still be a whole bunch of troublesome warlords left.
As for Bald Head's pajama-clad mountain-climbing dance party, it was also because his faction was too powerful to touch. There were plenty of clever people among the forces trying to capture Bald Head, so nothing happened.
There was even a Red Wedding ritual in the famous literary work A Song of Ice and Fire.
Yuffie's faction wasn't all that powerful. She had support only in the south, and her main role was to keep the balance of power. She had also offended plenty of factions.
If I'm not mistaken, in a few days, word will get out that Louis has imposed a news blackout. Then Louis's people will head south to deceive the locals and try to take control of things there. They'll most likely fail, but the southern military has been weakened by the plague. If Louis's people get their hands on the arms factory by sailing downstream, the south will have a hard time resisting them.
Yuffie's arms factory had already begun revising its production plans.
The main focus was shotguns, produced in large quantities. Rifled barrels would mainly be supplied for machine guns, and they were also producing hand grenades in bulk.
They were also turning out large quantities of easy-to-make Bronze