Jesus said there will always be wars and rumors of war. The Apostle Paul talked about putting on the whole armor of God. Used each piece of protective gear such as the helmet, breast plate, and sword to illustrate his points. The first gentile Christian was a Roman centurion named Cornelius.
If they're intrinsically evil then why would he do that? And if everything on Earth is there for our use then why did God give us uranium if not to use it at least for power? It's the same as guns. Weapons in the hands of responsible men are only there for safety. A gun doesn't kill people. People kill people. A gun is only a tool. It can be used for good or bad. Same with nuclear weapons. Better if we never had them but unfortunately there are evil men who do have them and might use them except they know we have them too and they'd pay a terrible price if they used them. So highly unlikely nukes will ever be dismantled.