> It's more that police will use it for their own personal inquiries- to track their girlfriends, potential girlfriends etc.

That's far from my biggest concern. Sure, cops stalking people/carrying out personal vendettas is not good.

But a little creativity will allow far far greater abuses. Here's one: imagine the current administration deciding they need to debank the great and powerful terrorist organization Antifa. Ring data on protest attendance is a great help in building a list of those rotten domestic terrorists.