Hate breeds a countervailing force of hate. No matter how much mischief on the short term that a monomaniacal ideologue can bring sown upon society, that society will, so long as it still possesses the means to resist, continue to sabotage and hit back in sometimes very asymmetrical ways. No matter how beautifully the proposed utopia is painted, by making a poor assessment of how people really think, the continuation of that vision is doomed, and will collapse. Sometimes this collapse is only to allow another even more flawed vision to arise, but in the chaos, like a phoenix bird, a more perfectly formed paradigm arises, and succeeds beyond imagination.
Sounds like a fair analysis.
I would add—evil is ultimately weak, and God wins.