"Defund the police" was and remains wildly unpopular with almost everyone, especially minorities (as a reminder to any of those out touch reading this: there are large racial disparities in who is affected by crime, particularly violent crime) . It was quintessential "progressives are out of touch" ammunition, not only used by republicans (obviously), but also establishment democrats in competitive districts.

As another commenter posted, its about not allowing the creation of the data set in the first place.

We really need everyone in this country to go read "Nothing to Hide" by Daniel Solove, because thats how this crazy shit gets through in the first place: innocuous citizens go "Sure, I got nothing to hide"