A surge of illegal homemade machine guns has helped fuel gun violence in the US
Communities around the U.S. have seen shootings carried out with weapons converted to fully automatic in recent years, fueled by a staggering increase in small pieces of metal or plastic made with a 3D printer or ordered online. Laws against machine guns date back to the bloody violence of Prohibition-era gangsters. But the proliferation of devices known by nicknames such as Glock switches, auto sears and chips has allowed people to transform legal semi-automatic weapons into even more dangerous guns, helping fuel gun violence, police and federal authorities said.
The (ATF) reported a 570% increase in the number of conversion devices collected by police departments between 2017 and 2021, the most recent data available.
The devices that can convert legal semi-automatic weapons can be made on a 3D printer in about 35 minutes or ordered from overseas online for less than $30. They’re also quick to install.
“It takes two or three seconds to put in some of these devices into a firearm to make that firearm into a machine gun instantly,” Dettelbach said.
That's just not how it works, because knifes are not specifically designed to kill people. Guns are. Some guns are even designed to kill as many people as possible as quickly as possible.
Some knives are for sure designed to kill people. You cutting potatoes with a karambit or balisong? Then there's arrows, or as I like to call them (as of this moment) shooty knives.
Furthermore, guns are technically designed "to fire a projectile" as knives are technically designed "to cut or pierce." The issue comes up with what is being fired or cut upon, which could be legal or murder in either case.
Furtherfurthermore, yes, guns do happen to be good at killing people, and sometimes that does need to happen as unfortunate as that is. We call that "self defense." Just so happens guns are the best tool for that job. Could I use a coin to screw in a flathead? Sure, but a screwdriver was designed to screw screws and as such is the tool I would prefer to use if I have to screw a screw.
The lengths to which people will go to defend their tools of death. School massacres? Who cares! Bowling alleys? Who cares! Shopping malls? Not my problem! Nail salons? Nah!
Unreal.
None of your listed scenarios legally count as self defense, perhaps you are confusing self defense with murder.