It's hard to say either side in this conflict has the moral high ground, so it's equally hard to say that a move to the detriment of one side or the other is amoral (unless it's clear that a move is to the detriment of both sides.)
Despite facing them as enemies, I wouldn't even consider most of the Taliban, Sunni former regime elements, or Shia militias to be evil for trying to kill the coalition military; the only really evil things they do are attacks on civilian population, and that isn't even done by the vast majority.
In Iraq, we actually successfully reached out to a lot of the less-irreconciable elements ("Sons of Iraq") and gave them a role in the new Iraqi state. There were cases where one day they were engaging US forces, and they next day were recognized by US forces as a useful security force and given equipment (well, reflective PT belts from the PX, so we knew they were the "good" guys now) and support.