Black spray paint is less effort

Paintballs are even better, environmentally and effort-wise.

Especially if the propellant tank is pressurized using a solar powered compressor.

(Theoretically, of course. I wouldn’t advocate destroying private property.)

Destroying public property is bad in a general sense, but not enough to describe the situation here.

Would you take the knife out of your robber? Or is that stealing private property?

Surveillance endangers society/democracy and it's a threat too

Paintballs are destroying public property?

Flock cameras are public property?

At no point did (or will) I defend the surveillance state.

Hypothetically, of course, it would be even easier to just sneak up from behind and drop contractor bags over them.

There is no sneak up from behind in this system, or at least it can be very hard to target. You must know the full extent of the network, emerge from the blind spots, dismantle pieces, then return to the blind spots. Faster than they repair the machines.

Ride there on an e-bike with a full motorcycle helmet. Cut down the pole. Cut off the camera. Throw the camera head in the river. GoFundMe if they catch you.