I am mostly referring to the first 2 sentences since the other text does not comment on anything that he actually said or did.
Just because someone is naive enough to think that a smart device does not spy on you or downplays what they know does not mean they do not care about privacy.
In order to say that the relative does not care about privacy, the relative would have to know the exact extent on what they collect and what they can do with it. You cannot assume that a normal person or even "tech savvy person" understands what is possible.
It is possible that what you said is applicable for your relative but in general this does not apply.