ocdtrekkie's response is a pretty good response to your post, too. When you write in broad statements of principle, even someone from the late 18th isn't completely lost. It wasn't at all news to them that invasions of privacy represented power over the one being invaded, and given that they were already concerned with the degree of privacy invasion possible in the 18th century, it's not like there's any chance they would suddenly go "Oh, well, a little primitive 18th-century invasion by a government is an unacceptable assertion of power over people, but when you can do it at a large scale with technological precision I never dreamed of, oh, that's totally OK."

Or is the suggestion that because 18th century white people would consider the modern day Facebook an atrocity, it is incumbent upon us to submit to their privacy invasions because otherwise we're like privileging old dead white people or something, which we are far too sophisticated for in this here 21st century?