Thank you for this. Will share.

While I believe in peace as much as possible, look what “they” did to MLK. I think people should read and take heed to the things you posted, but be prepared and trained for it to all go south.

I think the odds of it "going south" are reasonably good. I don't believe buying a gun and training on a firing range will save us. I think banding together in groups, trained and with a plan to physically occupy the streets and engage in MASSIVE non-compliance, has better odds of success.

What is an historical example of an authoritarian regime that agreed to step down purely as a result of non-violent opposition?

Nobody said "purely." The movements that overthrew the British raj, apartheid in South Africa, and the Jim Crow south were messy. And the work is never over. But assuming that we MUST engage in armed resistance in order to succeed is both factually untrue and not very practical in today's U.S.A.

Violence, and the credible threat of even greater violence, accompanied each of your examples. True, the U.S. is exceptional, and we might be the first time in history where non-violence topples an authoritarian regime. Or, non-violence with an authoritarian could be suicide. I guess we’ll see.