It’s discrediting valid concerns against card-payments. It’s invalidating how great cash is.
It’s when the worst person you know makes a good point.
And things now are so Culture-Wars-y, nobody makes solid analyses any more, that when the far-right say cards are bad, everybody jumps to thinking cards are good.
the lack of privacy with cards is primarily what is giving you security with them. trust factors will always exist somewhere in the chain.
to be more to the point of the post, though, you can agree with a person’s singular opinion without supporting or agreeing with that person.