This has to be a joke.There should be limits to clan sizes. No server should ever be dominated by a single clan.
Its the players decision on how they want to play the game. If some players want to come together to kill bosses instead of fighting over everything, its their choice. If you want to go against them thats your choice as well.
Also who said clan size would control anything. They could just create Clan Resurgens1 and Clan Resurgens2.