The very idea that a whole continent of people are all untrustworthy and dishonorable is absurd enough, but the only thing you're basing this on is the word of the conquerors of these very people. Of course they're going to claim that they were bringing enlightenment to a barbaric people. That's how most hegemonic powers have justified their expansions in history. I find it absurd that you swallow all their crap completely, and then use this to state that a whole continent is tainted.

Further, if the people of the Wetlands have an inherent system of justice and honor that will allow them to survive the absence of the Seanchan, what justification do they have for their invasion and their intent to export their bigotry and persecution?