ooooor how about small arms strapped to the back of some trucks and a very basic radar to tell them all where about the drones are? It seems to work for Ukraine, small cheap drones call for cheap mobile units. No need to bring freakin lazers into this, rifle caliber rounds work just fine and are even cheaper then a lazer system. As an added bonus small arms on the back of trucks are super mobile and can go to the place the drones are attacking, unlike a lazer that is not very portable and oh yeah needs a lot of power to run it. For ships? Sure, makes some sense. For basic civilian infrastructure defense? Ehhhhhh seems really silly.

The iron dome being made for the last war is correct, however as in the "final" war not "previous" war. The reason they don't work is here is that they (like patriot, etc.) are built to stop very big very pricey ordnance up to and including world changing strategic missiles. We have seen these systems do great work in places like Ukraine and in small attacks in the past (think of the propane bottle rocket attacks). The issue is that the design clearly did not anticipate the current style of warfare, where it is drastically higher volume and intensity then those small nuisance attacks in the past but also using the cheapest devices to wage a war of attrition. In some places you see a hybrid defense using small cheap arms (insert Vietnam's solution) and these "final" war style air defense missile systems. These places are at least thinking about the current reality, unlike what we see in that video where it is likely that iron dome battery simply had 1 less interceptor then there were drones and had zero backup to the system.