Legal guns not firing in public just means criminals using illegal guns don't have to worry about a gun-wielding public. I believe there were already several incidents in the US where people shot down mass shooters. Imagine if you actually have to wait for the police to come.
Sure you can make it so that in the event that a mass shooting happens all the other guns unlock but there will be a delay between the center receiving information that one is indeed happening and them being able to deactivate the block.
Not to mention they'd probably spend even more time "confirming" the incident before being forced to unlock guns coz "Guns Bad!".
Since criminals follow the law and don't do things that are illegal, that sounds great!
Wait...
Wait they don't follow the law? I'm shookt!
Taking down a shooter in public is the job of cops; not fellow bystanders. Law enforcement don't need preauthorization to fire their guns. Unless, we change the law so that cops can't just shoot anyone when they feel like it. Maybe they should get an "ok" from a superior before they can shoot.
Look, this is far from being a reality because of too much red tape and organizations like the NRA. No one has the balls to initiate change. We will continue to have mass shootings and accidental gun deaths. This is the world we live in unless we truly want change.
This is not just about "mass shootings" or "taking down shooters". A very large percentage of violence includes weapons and situations other than guns. This is about ones ability to defend themselves.
You want to wait for the cops to handle everything? Good job, you just increased the death rate in the US. You just killed that old man biking on the trail when he got jumped by 3 thugs and almost beaten to death ( true story)(he pulled a gun after being knocked off his bike).
When seconds matter, the cops are minutes away.
The NRA isn't your issue, they're not the demon here. They are the the only ones that have enough money (donations) to be able to present an argument to the political crooks who need to be "lobbied."
We will continue to have mass shootings, as long as the majority of the populace are sheep who are naive enough to think the govt can protect them from everything. We will continue to have mass shootings for as long as they're glorified in the media. We will continue to have gun violence as long as the criminal/thug lifestyle is glorified in the entertainment industry. Society is the issue here, not the existence of fast moving metal.
Enact more gun laws. Have the strictest gun laws in the nation. See how that worked out for NJ, CA, Chicago.