Given that in the end both sides violated the treaty, it's a little facetious to play up the "immoral Cardassians" angle. Not to mention racist to categorize an entire people in such a manner. I also couldn't help but note that several of the events you cited above to illustrate the immorality of the Cardassians occurred before the treaty was signed.
Nobody forced the settlers to relocate, but the settlers were damn well aware of what was going on, and in an age of replicators, the whole "OMG I have to leave my home" argument strikes me as much less substantive than in the current day. They -chose- to live under Cardassian rule, and as you made such a point of illustrating, they surely must have known what they were in for.
In any event, even if I supported the Maquis engaging in acts of self-defense that nevertheless ran against the policies they'd chosen to live under, I would have withdrawn my support when they started engaging in biological warfare. If you want your noble little protest group to gain supporters, engaging in blatant terrorism isn't the way to do it.
Wow, calling me a racist because I said the Cardassians(it being completely obvious I'm referring to their military/government/not much of a difference between the two) couldn't be trusted? Did you even read my second to last post citing a number of examples of their duplicity? I'll have you know the Cardassians -were- a tragic race on so many levels, but that doesn't mean they didn't do it to themselves in the end.
And your example of "they have replicators, so they can move" is a grand example of missing the point. It's forced relocation of civillian population to appease a hostile power. They didn't -choose- to live under Cardassian rule, some Federation diplomat who had never even been near the border chose to give their homes away to the Cardassians. Then the Cardassians start brutalizing them, and everyone's oh so suprised that they rise up? I suppose you'd have defended Stalin's forced relocation of the Germans and everyone else in eastern Europe too?
No one said they were a "noble protest group." In the day and age of heavy industrialization and weapons that can wipe out entire armies, you actually expect a smaller group without an industry and a minimum of conventional weapons to fight a conventional war? The last 100 years of our own history should point to that, however distasteful it may be, terrorism is an effective weapon against an occupying force. Even TNG called the Irish Republican Army as a case of succesful terrorism. I suppose you think the Bajorians were out of line to resist the Cardassians too?
If they peacefully protested, the Federation already flat out said they don't care, and the Cardassians were already attacking them. So that's not going to work in this scenario. I will agree with you that Eddington crossed the line when he started using biogenic weapons. Not like Sisko was any better though. Him using trilithium to destroy a planet is like a US captain firing a tactical nuke at an Arab village suspected of holding an Al-Qaida cell.

Sisko and Eddington should have been sharing a cell.