Nuclear explosions are difficult to propagate; there’s a balance between too much boom to scatter the fissile material and too little boom to fail to compress enough for a runaway nuclear reaction. It’s one of the key steps to making an actual bomb when you have the material to do so.
So don’t stress about that, stress about the next 20-40 years world wide.
You were doing very well until you started telling me the views you planted to argue against.