You're right that they often do a lot of harm.

The point that you're missing is that, in a system where such abuses are possible, many of us really don't want one more tool in their box for them to fuck us with.

Like, they already prove themselves incompetent- giving the power to track anyone in the US via a distributed ALPR system just makes them more dangerous. Giving them all these "AI" based tools does the same.