That particular arc was probably *the* low point of the series for me. There have been plenty of problematic decisions that the Lanteans have made before and after, and several episodes that just didn't work for me for whatever reason, but that whole arc was just so wrong on so many levels.

And yet, after this episode, I'm kinda coming to terms with it -- their hands aren't clean, and a lot of their future problems could have been prevented by better planning and problem-solving (a chronic problem, with them...) but they're in a war, and they tried a solution (albeit ill-considered, kinda immoral and rather dumb) to end the war without having to commit genocide on a species that basically can't co-exist with them. One point that was brought up in Inquisition (as much as I hated that episode, and as clumsily as the point was made) is that this isn't really their fight; they've always got Earth to escape to, but they're choosing to stay and fight anyway, and as creepy and ultimately bad as their actions towards Michael & company ended up being, they are having to make these lousy decisions on the fly while attempting to survive and win against terrible odds. (Well, actually not so bad odds, since they're the main characters, but they don't know that. Heh.)