The idea that people are affected by their experiences is hardly novel. You don't need to dress it up as "mind viruses" and claim it is an "infection".
Yeah, sounds like parent is talking about "opinions" and "beliefs", something humans famously can't agree with one another about for as long as we've existed.
The tricky part is figuring out how to still collaborate and live side by side with people you vehemently disagree with.