These systems have provided incorrect data, and law enforcement often misuse that data to stalk, attack, and wrongfully arrest innocent people. Privacy matters to everyone - especially for ones who don't care about privacy.

Law enforcement can act on that information, but they can do a lot of things. Whether they actually are is a different question.

You're also ignoring the risk here. These devices open up a whooooole new class of mistakes that can be made. There have already been people wrongfully jailed due to surveillance technology.