I saw what you advocated for Jhana and the results of what you advocated for have already dramatically failed in nations that with large land masses that implemented what you advocated for.
But let's take a look at even your small island example which is the best case scenario for your argument. As usual, your argument fails when the statistics are reviewed.
Norway has a civilian gun ownership rate, per capita, far higher than Ireland. See them compared here:
Compare Norway – Rate of Civilian Firearm Possession per 100 Population
BUT Norway has a gun homicide rate far lower, per capita, than Ireland. See them compared here:
Norway:
Norway – Rate of Gun Homicide per 100,000 People 0.04 stable from 2010 thru 2012.
Ireland:
Ireland – Rate of Gun Homicide per 100,000 People 0.45 for 2010 to 0.24 for 2012 then up to 0.25 in 2012.
The difference is that Norway has nationwide gun safety training so citizens are comfortable with their weapons and know how to be responsible for them, and less gun control which means they have a lot more guns and of the kind that allow them to adequately defend themselves which acts as a present and very real deterrent to criminals.
You want to use totalitarianism to deprive everyone in the world the ability to adequately defend themselves against illegally armed criminals who can make fully functioning firearms whenever they want to and it isn't working.
Even if you side with the anti-Christ and require everyone to register to buy and sell anything, you won't be able to stop the world from making firearms Jhana. All you'll do is make it easier for criminals and the government to severely persecute unarmed moral people that follow your inane laws that put them at risk from both.
And you apparently never got this memo:
Republicans in Northern Ireland look to Taliban for weapons - Crime - UK - The Independent