I'll only say that your name is very appropriate.
While I recognise this is a joke, I think the insanity argument is actually one of the strongest arguments in favour of CrazyGamer2017's point of view.
There are thousands of examples of people who thought they were saving the world - or something similarly important - by killing innocent people. To date, they've all been wrong. I've personally got friends who were killed by a man who thought it was necessary to save Norway.
Every single one (to my knowledge) either grossly overestimated the threat, or grossly overestimated the effect of killing the civillians. That's why approaching this problem, you should always have a sense of humility - how do I know I'm not insane?