The response should be to set up 4 or 5 155 mm guns and walk linked fire from the border to the sea. The fire should create a corridor of holes and a thunderous fear inducing noise. There should be no claim of collateral damage because it should be obvious to the dumbest grandmother to evacuate the corridor.
The process should be timed to take at least two days.
Do you have ANY idea how much artillery shells cost? The days of massed fires like that are pretty much over...
I’d say put a bunch of batteries around Gaza, link to ‘em to counterbattery radar and shell the hell out of where ever the rockers are launched from.
Chances are, the rocket launcher crew will be gone, and you’ll just be shelling a “school,” “hospital” or “orphanage” but that’s the Pali’s problem not the Israelis.
They should also put in a proactive element - UAVs with camera’s and Hellfires. If the UAV sees someone who looks like they are setting up a launcher, it either engages on its own or sends the info the artillery battery. Better yet, you can hold fire, wait for them to leave, and follow them home. Then shell the hell out their homes or HQs.