I think you are correct, but I prefer a more direct approach. For example:I can definitely empathise.
What I found tiring was providing data-backed proofs to reach Q.E.D., but to people that had no intention of listening, and they'd simply repeat the same bad analogies and cult talking points back. Waste of time, like you said.
Hence, there's a need to simply come up with competing marketing slogans of a similar style that worked in brainwashing the cult in the first place.
In other words, I think we've already reached the maximum number of people that can wake up to the scam with logic, data and research. If they haven't yet awoken in the past 19 months, they never will. And those capable of logic and thinking but continue to parrot the mantras are likely leading sects of the cults themselves.
So with the remainder utterly incapable of independent thought and analysis, perhaps a strategy is to brainwash them in the other direction with the same quality of propaganda, attacking their slogans with newer slogans.
It's akin to the low-brow slandering a company's marketing campaign may use to smear its competitors out of popularity and existence.
NPC: You are a horrible person, etc. How many more people have to die before you will accept the lockdowns + face diapers + mandatory injections?
Me: All of them.