Depends on a lot of things, obviously this person is revealing their ignorance to you in an obvious way. You know more than them.
As far as how to respond and communicate any further, many questions come to mind:
Is this a person you are obligated to have a continued relationship with?
is this a person who you want to have a continued relationship with?
Is there a power dynamic on your relationship with this person?
Do you think they would be hostile if any particular topics were to come up?
Does this person have a any position of implicit or explicit social or political power/influence?
These answers would all influence my response, but I don’t particularly enjoy engaging with people who’s understanding of the world is so misaligned from mine that I usually just move on as quickly as possible.
Depends on a lot of things, obviously this person is revealing their ignorance to you in an obvious way. You know more than them.
As far as how to respond and communicate any further, many questions come to mind:
These answers would all influence my response, but I don’t particularly enjoy engaging with people who’s understanding of the world is so misaligned from mine that I usually just move on as quickly as possible.