I'll agree that the treaty itself was incredibly inconsiderate of the border worlds.
That being said The Maquis seemed to want their cake and eat it too. They weren't really good about meeting the Federation halfway. Like Timo said they never declared independence and began slipping further into the category of terrorists. This forced the Federation's hand in siding against them. They did themselves no favors there.
Also, if I were a parent and had kids on those colonies, I would have relocated without question. If we started getting harassed by Cardassians then I would have definitely drawn the line there. It just wouldn't have been worth it to me.