My standard response to "I have nothing to hide" is "then why are you wearing clothes?". It seems to work relatively well to put things into the exact perspective you describe.
My response is to "I have nothing to hide", is that isn't what you're giving up when you give away your privacy. You should be comfortable with "never needing to hide anything in your past, present, or future". The future is impossible to predict and actions that could be innocuous today may cause a great deal of trouble for you in the future. You give up that right forever when you lose privacy.
I disagree. A lot of what people would "hide" are in fact equivalent to "clothes" worn because of social norms or taboos.
A comment I make to a friend sitting next to me would be inappropriate to make to the policeman in the corner, or to my boss. Inappropriate to the point of there being consequences.
100%. I have group chats with friends where we express views that would be viewed askance, to put it lightly, by those that don't share the same opinions. Something to hide? Not particularly, but its private discussion so fuck off thank you kindly.
> but for the negative social consequences of the alternative
You mean like hiding your bank balance because the social consequences of people seeing it? Or hiding your medical records because of the social consequences of people seeing it?
Social taboo is a reason we hide things. We know there are social taboos against many things that are harmless, like nudity, so we conceal them. I feel it's a pretty good analogy.