Agreed. I also get flummoxed whenever I try to talk about this stuff.
Further, I've only recently appreciated that our modern folk understanding of right to privacy has eclipsed its twin, the right to personal autonomy.
The development of the doctrine regarding the tort of "invasion of privacy" was largely spurred by the Warren and Brandeis article, "The Right to Privacy". In it, they explain why they wrote the article in its introduction: "Political, social, and economic changes entail the recognition of new rights, and the common law, in its eternal youth, grows to meet the demands of society". ...
They then clarify their goals: "It is our purpose to consider whether the existing law affords a principle which can properly be invoked to protect the privacy of the individual; and, if it does, what the nature and extent of such protection is".
https://en.wikipedia.org/wiki/Privacy_laws_of_the_United_Sta...
Brandeis & Warren were motivated by the evils of "yellow journalism", the social media of its day.
"The U.S Constitution safeguards the rights of Americans to privacy and personal autonomy. Although the Constitution does not explicitly provide for such rights, the U.S. Supreme Court has interpreted the Constitution protect these rights, specifically in the areas of marriage, procreation, abortion, private consensual homosexual activity, and medical treatment."
https://www.justia.com/constitutional-law/docs/privacy-right...
I love the EU's notion of consent wrt privacy (h/t @sschueller). Will definitely learn more about their system. My hunch is consent is akin to respecting another's autonomy.