Can we talk about a quadruple 1984-style phrase the term "Speak my Truth" is.

Truth, implying that it is 100% factual.

My, implying that even if it isn't factual, "You don't know me, this is what happened to me, you can't cite against me."

My also plays the role of enhancing the speaker's power, feeding the ego.

Finally, the entire phrase exists to make it so that no matter who is saying it, suddenly everyone has to stop and listen otherwise it's violence.

Kudos to the inventor of that phrase, they're a sociopathic genius who knows how to get these types to latch onto something and wield it like a crowbar to other's kneecaps.