Uh no. I am thinking civilian terms. If I have a nuke anyone who knows I have it would avoid me the best they can.You're thinking in military terms, not civilian ones.
When I walk across the street at a crosswalk the only thing protecting me from an idiot running me over and killing me is a red lightbulb telling the people driving cars that they need to stop and wait.
Easy way to fix
If someone has the money and capability to store it....eh, I disagree when it comes to nukes.
Normal guns do not have the issues with rads and persistent damage, even normal explosives or artillery do not have that issue.
Fissile material is a different beast than a 'firearm' of any caliber or size, because they can impact areas for decades to centuries, and just getting a nuke properly built results in a lot of hazardous waste no private citizen is equipped to handle.
I don't mind if civies can buy Hellfires or even reserve fleet ships, but nukes and fissile material are a different ballgame.
It shouldn't be a big deal.
The main reason most people can't own nukes is no where to store it and not enough money