Have a look at this
https://www.reddit.com/r/Documentaries/comments/kw23ex/qs_going_nowhere_an_introspection_of_the_qanon/
There's a "cult deprogrammer" specialist in there talking about what to do, and what to avoid. Very interesting.
I have a personal recommendation if you want to look more into how cults brainwash people in the first place, and might help understand why some of the people in the QAnon and Trump movements are so invested while seeming like reasonable people 90% of the time, research Steven Hassan's BITE model. The guy was in the Moonies when he was younger, and almost died following their beliefs before his family pulled him out and helped him get deprogrammed from their cult mindset. He's since become a cult expert. The cliffnotes on the model are that it covers the four methods of control that cults slowly, but surely, exert over their followers until they only believe what the leader and other higher-ups in the cult say. To summarize:
Behavior Control
Information Control
Thought Control
Emotional Control
This handout summarizes it in more detail than I have here, but not in a way that makes you feel like you're lost in a wall of text. And before you ask, yes, it can also be applied to cults of personality like Trump's. Hassan himself actually wrote a book specifically about Trump's cult of personality, applying his model to it and showing how he used these methods of control, albeit probably unknowingly, to get such a fanatical base.
https://freedomofmind.com/wp-content/uploads/2018/12/BITE-Model-Handout-9-23-16.pdf (Hasty edit: WARNING ON THIS DOCUMENT!! It goes over some heavy stuff, and quite frankly disturbing stuff, that cults use to control their members. It doesn't go into great detail, and uses more passive wording, but it still goes over some of the more disturbing things that cult can, will, and have done to control their members. Not for the faint of heart or those with mental trauma, basically, if you think it could affect you. Sorry I didn't note this when first posting.)
Very true. I just don't get it. We've been dealing with this **** since Nostradamus (and before) - how is it not obvious that it's all BS? And that's not even factoring in the actual history of Q that's widely known and available at this point. (I know, I know, it's all misinformation supplied by "the bad guys"
)
The PDF I linked actually mentions how that thought process gets into the minds of the followers, I believe it's either under Information control or Thought control. It's honestly good knowledge to have, but terrifying to think about.