"I choose to think positively!"

There’s nothing wrong with thinking positive, DA. It becomes dangerous when you simply ignore reality, though. That’s a bit like sticking your head in the sand and refusing to see - or "not choosing" to see, what’s in front of your eyes. For instance, you say "WE didn’t decide to go to war." That’s blatant nonsense, DA. Of course you DID. You may believe you have good reason to go to war, but don’t deny the fact to suit your positive mind-set.

Yes, God can bring good out of evil. However, it is not part of our duty to do evil so that God can bring good out of it.
Your line or argument comes dangerous close to defending that.