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But the strength of differential privacy is that you can now make this tradeoff explicit and quantify it. I always liked it because it offers a mathematical solution to a policy problem, but then of course it's up to us to decide what parameters and tradeoff to choose. Also, some data might just not get published at all if the privacy implications are too problematic, so differential privacy might buy you more signal!
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Yeah, the main issue with differential privacy is that you need competent government officials making decisions who understand math beyond a high school level.
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It offers a mathematical description of a policy tradeoff, and the policy makers are apparently setting one of the parameters to zero.
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There's a ton of information in the US that is accessible to various degrees--especially through the the deep web much less background investigations. Unless you're a wealthy person who can set up various levels of trusts you can't really hide them.

You can of course disagree about what what should actually be part of a transparent public record. (Though I suspect a lot of people post-date what was generally available in a "phone book.")

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