...and Gandalf suddenly had a brilliant idea of how to win the war.

[Lalwendë]

Originally Posted by The phantom

If Gandalf and Aragorn had employed orc mercenaries or even bred orc armies, they still would not be guilty of creating the race of orcs. They would merely be making use of something that was already created. That is a major difference.

But just because a 'thing' exists doesn't necessarily make it OK to use it, and though I know you're not saying that it would be perfectly OK to use The One Ring or Orc breeding, it's a dangerous path to head down. Think of nuclear weapons. They were invented and used, but it does not make it OK to use them again, and even having them poses problems as there is always the possibility they could be used, the threat still exists. So, to create Orcs is wrong in itself, even if they are not 'used' for bad purposes.