See your previous response below.
You would need to argue that the intent of the "extremely bright, focused spotlight" on your neighbor's camera is not to render it useless. The same would go for the strobe light. If your intent of either of these lights is not to render your neighbor's camera useless, then what are they for? A strobe light pointed at a specific area of your neighbor's home is not going to determine criminal activity. A spotlight focused on one specific area of your neighbor's eave or soffit is not going to deter criminal activity.
Until the OP can prove:
A. The camera in question is real and not a dummy.
B. The camera in question has a FOV and focal length that invade his perceived privacy.
C. The camera in question is installed in a manor that is breaking any laws.
Then the suggestions to launch a defensive offense are just ignorant.