You know what else is different? You could make alcohol in your bathtub. You can make meth in your bathtub. You cannot make an AR-15 in your bathtub. You cannot make a 30 round clip in your bathtub. Prohibition actually successfully stopped all factory-based production of alcohol in the US. AND THERE IS NO OTHER TYPE OF PRODUCTION OF GUNS THAN FACTORY PRODUCTION.
And if we end up in a country with all guns disappeared except for some home-made zip guns and ALL THE COPS STILL HAVING GUNS, I would take it in a heartbeat.