From a recent discussion...
Great examples [Francis of Assisi, Ignatius of Loyola, Martin Luther]. So what do you see them doing? Were they preaching their revolutionary ideas to others before they tried them and experienced real liberation? Other people followed their example, because they saw actual human lives that embodied the message, and people admired that example, saw that it was good and possible, and wanted the same for themselves (and their communities). They saw Francis abandon his wealth and influence, saw Ignatius renounce the power of violence for the sake of a greater power, saw Luther risk his life standing up to the oppressive religious power structure. And they saw all these things in Jesus' life, too. They saw evidence of real liberation.
Putting an idea into practice is a test of its truth: does it lead to liberation, or more disillusionment? The prophets and leaders you mention (and many others) didn't ask others to believe them if they didn't believe it themselves enough to put it into practice and test it, sometimes at the risk of their lives. They didn't tell people "this is the way forward" until they had some solid evidence, evidence they got through living it. Then they had something to preach that was worth listening to.
I keep hearing bold (and loudly critical) ideas from primitivist and anti-civ folks, but when it comes to putting it into practice and evidence gained from experience, I just hear excuses about why this isn't possible. Why not try this stuff first and see how it turns out in real life, then tell us what's true and possible, and what's not? I have a feeling the message would look quite different after actually attempting to live by it.