Are you sure about that? You are saying that differentially private census data couldn't be used for gerrymeandering and advertisement while non differentially private data could? Hard to believe, I'm not an advertisement or gerrymeandering expert but I would assume people running ads or cutting up districts are mostly interested in aggregate statistics i.e. they won't care about single households? And I would assume they can rely on voter files, party databases etc... And to the contrary there are reports [1] that indicate differential privacy actually makes gerrymeandering analysis more difficult or impossible. So, not really an argument for differential privacy, discriminatory action can be equally well taken based on differentially private data as the government cares about groups not individuals and groups aren't protected by differential privacy. It seems people really fundamentally misunderstand what this technique can achieve and what it won't do.

1: https://pmc.ncbi.nlm.nih.gov/articles/PMC8494446/?utm_source...

> You are saying that differentially private census data couldn't be used for gerrymeandering and advertisement while non differentially private data could?

They definitely didn't say that. You said that. And you said that because you would prefer to argue impossibility vs. possibility rather than more useful vs. less useful. You prefer this because for the first irrelevant question which no one asked (it is possible to use current census data in bad ways), you are obviously right; and for the second, relevant question (would allowing this data make it easier and far more useful for gerrymandering and advertisement), you are obviously wrong.