I do not advocate doing nothing. I am suggesting that there must be better way than violence. Do you disagree with that?

What exactly do you suggest?
Chamberlain tried very hard to avoid using violence to curb Hitler, and how did that turn out?

Obama made chemical weapons use a red line, but did nothing when it was crossed so why would they not keep on doing it?
Do we want chemical weapons to become normalised, or should the war criminals have to face reprisals as a deterrant to the use of such proscribed weapons?