The quote is fine as long as you don't take as an absolute statement of the only way things can be. It is a fact that the outlined strategy is almost always effective.
Thanks, that's what I meant by including it this discussion.
Personally, I would hope we could raise the general level of skepticism and equip ourselves with a Sagan-like "Baloney Detection Kit" so that everyone is aware of this technique for motivating populations towards conflict and that this hopefully makes us all more immune to it.