It's a dumb/lazy/specious talking point. You can kill someone with a pencil just like you can kill someone with a gun, but the gun scales up the danger so we treat it and regulate it differently. You can kill someone with a bike, a car, or an airplane, but the risks go up at each step so we treat and regulate the respective drivers differently.
If AI gives every individual the power to suddenly scale up the bullshit they can cause by 3+ orders of magnitude, that is a qualitatively different world that needs new considerations.
Norway,
https://en.wikipedia.org/wiki/Kongsberg_attack
The way it hit headlines in the USA was somewhat misleading.
Look for American news posts if you want to feel out the weird position. You can see the video of him just going about it in a store, and in the entrance.
Five people were killed by stabbing, none by bow and arrow. While it may have been the biggest recent mass killing in that country, it's still small compared to what can be achieved with greater weapons, which was the point.
If AI gives every individual the power to suddenly scale up the bullshit they can cause by 3+ orders of magnitude, that is a qualitatively different world that needs new considerations.