They say x, ask for where they heard about x. They say from y news organization, ask the source for y. If they say z, if z is actually an actual document or otherwise, ask them where in z does y claim x is true.
If z is just another news organization, keep going until they provide (or don't provide) an actual document. If they can't procure an actual document, send it yourself. If z is just another video cIip, ask them for the whole video. Provide them the entire video if they can't.
Do not try to antagonize. Just simply ask the questions as if you were trying to understand their point of view, to learn something we might not have heard.
I don't know about the "technophobic" thing, but THIS ...
... is SPOT ON.
When I say technophobic, I'm referring to specific examples in my life who grew up before personal computers, of the boomer gen; people I know, like my mum, who never embraced technology, can barely use a cellphone, never learned basic computer skills, and thus severely limit their sources of information. They are afraid of computers, and never bothered to learn.