“We need more gun control! It’ll totally work this time!”

In the wake of the San Bernadino shooting I have several long-time friends on the Book of Face calling for more gun control as a means of stopping such tragedies.
One person proposed “common-sense” things like “banning assault weapons, closing the gun-show loophole, universal background checks, restricting magazine capacity, waiting periods, training requirements, safe storage laws, actively taking guns away from people no longer eligible to own them, licensing, registration” and so on. They failed to realize that every single one of those things is already the law in California and did nothing to prevent the bad guys from carrying out their terrible crime.
Another went so far as to say that the country should ban bullets, since banning guns is legally off the table. <sarcasm>Right, because that’ll totally work, no court would ever have a problem with that, there’d be no incentive for criminals to illicitly produce or import cartridges using the same methods?used for human or drug smuggling, and nobody can possibly make bullets, powder, and primers from scratch.</sarcasm>
*sighs*