That's because you haven't thought it through. "We only want info on the bad people" might not alarm you personally until any government entity changes the definition of bad and now you're a "bad guy".
They can be abused in the future even more.
Mass surveillance is abuse within itself.
There has been controversy in NYC.
No controversy doesn't make things right.
Edit: Actually, it's such an extreme misconstrual that I'm wondering if you thought you were replying to a different post?
Isn't the implication "if only you thought more and better about this topic, your opinion would match mine"?