Do you think family leaders care about vermins? In Gus and Trauma's convo there was a line as long as we maintain our relationship. What if Jahad manages to get help from blossom? How would that go? Maybe other will think they will prove how far they are in contest with LPB. Do you think AKH, families will fear PB family?
To choose between 2 sides they must have atleast an equal profit. If they chose viole, that would be investment. Also they have to babysit him. That's what Gus is doing RN. You cannot compare Jahad and Viole RN. With just J influence, Viole's good days will be over.
This isn't between take side between baam and zahard anymore because the bussiness about baam is ends at the nest.
This isn't about care or not care about vermins, this is about their own existence, their family existence, they aren't children who want to contest that didn't give anything good for them, what do you think if okey they help zahard to put ends gustang's ambition but they want to zahard given up his kingdom and give the kingdom to them? even you can see there in the convo between zahard and traum, traum wants something to help zahard, even make zahard who wants kill baam back down because traum wants baam.
And gustang isn't stupid carelessly declare the war to zahard kingdom if his war make him lose.
This is between gustang and zahard who now got help figthting gustang by traum, the other family got no bussiness for this war, if not benefit for them.