

It shouldn’t be. Asserting that “no non-violent protests have failed” ignores an obvious null hypothesis.
Tyrannical regimes attack non-violent protests that get large enough, and then call said movements “violent” to justify what the state did to them.
Since you read it, and don’t reference them addressing the fact pattern I mentioned, I’m not sure reading it would be worth my time. I’d love to be convinced, however, if you can answer one question.
How did she categorize a movement as “non-violent” or not?