Great advice from Brent Lee who has lived experience of not only engaging conspiracy believers, but was immersed in that world. I'm hoping I can find the patience for what he advises!
I see a lot of people distancing themselves from friends / family. I understand. Your frustration is valid. If that's what you need, do it.
But if you're still willing and able to put in the energy to pull them out of the rabbit hole, here's how to begin that process.