So what, in your opinion, constitutes a moral, just or right action? If the Federation had backed their own colonists all the way and forced a harsher set of terms on the peace treaty, would that have been moral, just and right? Would it have mattered what their motivations were? For example, what if the top members of the Federation were pursuing an expansionist, Human-nationalist policy in order to colonise as many worlds as possible and expand the borders of the Federation, would their backing of the colonists have been as praiseworthy in such a scenario?
Considering the Cardassians started the first war and had a history of attacking and exploiting it's neighbors trusting them to honor any peace treaty is a skeptical notion. As I mentioned in my last post, they violated the armistice by destroying a Federation colony, tried to sieze Minos Korva while negotiating it, and attacked Federation targets even after it when expedient.
As for your example, if the Federation was expanionalist why would they have given the territories away to begin with?
It doesn't make sense to go with a wholly deontological ethic in this case, nor does it make sense to go with an entirely consequentialist one. It is possible to commit an entirely monstrous action 'for the good of the many', just as it is possible to commit entirely monstrous actions 'just following orders' or by following your own code too rigidly.
I'll agree with that point, which is why the Federation has on numerous occasions invoked morality to justify breaking the rules. Just not in this scenario.
Meh.
Can you really call them 'oppressed' when they entered a disputed region of space by choice and then refused to leave it? If Picard's actions in dealing with the Dorvan colonists were any kind of precedent, the Federation gave the colonists every option possible: stay where you are and live under Cardassian rule, or leave and continue with the Federation. It was hardly a forced relocation which resulted in that case.
Oh yes, they're the villains. They had been living there for -generations-, long before the first war started, many were born there. I suppose it's their fault the Cardassians were expansionalist, the Federation gave away their homes without bothering to ask them, and told them to go screw themselves pretty much when they protested it. No it wasn't -quite- a forced relocation, it was just "Meh, stay or go, we don't care, but your homes belong to the Cardassians, suck it up." Well they decided to try and do something about it.
In the UFP's defence, the Cardassian-abetted Dominion invasion of the AQ was an unforeseen consequence - and the Maquis were as much to blame for that as the Federation were. Though, for that conflict, ultimately no one was as much to blame as Dukat was.
Dukat certainly was to blame, but that civillian government that people like to praise so much(that many forget that Dukat was a high ranking official in) willingly agreed to join the Dominion. Blaming the Maquis for the Cardassians joining the Dominion is almost like blaming the people in Danzig for the German invasion of Poland because they had the audacity to fight back when the local Nazi's tried taking over.