The Zoners do not like the Houses or the way the Houses are run. This does not mean they are not willing to trade with the Houses in order to obtain the supplies they need. Bretonia does not like the way Rheinland is run. Liberty does not like the way Kusari is run. Does that mean they should not trade with them either? The Zoners are just a collection of individuals who don't like the houses and don't want to live in them, but like everyone else they still have to trade.