

That’s a nice sentiment but no, it won’t work. If your family member rattles conspiranoia to your face, it means they already don’t care about you to enough a point to not only openly do that, but also they are probably unvaxxed and likely unmasked at the moment. Or every single time.
At that point, they don’t care for you. Period.
Ahem.
That the eyewitness was also recording does nothing to change veracity, those are still photo / audio / video and can thus be faked.