>Are they quoting a fringe YouTube video (which may have been fact-checked and debunked) We have got to get away from this idea that you can "debunk" something with some authoritative source of truth. That is just not how reality works, and the idea that you can "fact check" and "debunk" your way to a healthy, functioning system of rhetoric is absurd. NO argument has EVER been won by somebody pointing to a third part…
I used to be someone who would perpetually argue with friends and family members who believed in all this conspiracy crap, usually devolving to me sending links to Snopes and Politifact and whatnot, but I later realized that it was completely irrelevant, and probably just made them feel stronger in their beliefs, since they could always just dismiss me as "in on it" whenever I said something they didn't like.
Nowadays, I honestly just don't talk to family members and (former) friends who believe in really problematic nonsense, since by the time that they've fallen into the QAnon rabbit hole, it's not like a beautiful and logical argument from me to going to have any effect.
I'm not sure what the best strategy for fighting this kind of weird mass idiotic groupthink is. There's a part of me that thinks that the best thing to do is to make fun of them and mock them, but of course that's a lot easier to do when it's not your friend of family-member on the other end.