
Refusal to attempt to do the impossible is entirely logical. Your argument is a fallacy and also lacks sources. Also brazil has no 3d printers im aware of but no shortage of pipe weaponry etc. many nations the presence of printers and restrictions on them will do nothing cause guns are already everywhere as is the knowledge to smith em
But unless an attempt is made you don’t know it’s impossible. Background checks, waiting periods, required safes can reduce gun violence. It’s indisputable that accidental deaths from guns (such as children shooting) can be avoided through basic things like requiring it be locked up and stored unloaded.
Australia also showed us during covid reasons why you dont want to give up your weapons. Getting arrested for going to a kfc drive thru is bananas. UK has serial stabbing and acid attacks… switzerland yes, bit more civilized. But more nuance to why it works there and there only and again doesnt suffer from the issue of the mass availability of weapons and ammo for the past 300~ years.