So let me get this straight: they came for unnamed people they consider so dangerous thar they require helicopter drops and urban warfare tactics, and the way to keep the non-criminals safe was to drag them into the chaos? If one of the targets or a reasonably defensive citizen pulled a gun and started shooting the armed intruders, what were they expecting to happen to a group of kids zip tied to each other?

It’s almost like they’re out to scare and punish rather than protect and serve.

Well, they literally don't have the obligation to "protect and serve".

SCOTUS with the case of: Castle Rock v. Gonzales is a good example.