The 2nd does not prevent a very rich and immature individual from having his own nuclear submarine with nuke-tipped ICBM's.
Correct. It is the body of the Constitution that does that, the part that grants the federal government its powers.
The Constitution is a charter of conferred powers, powers that
We the People have granted to government so it can perform certain duties
We the People have placed on it. The power to declare war and raise and support an army and navy (including powers to acquire, possess and deploy the weapons of wide scale / indiscriminate warfare) have been
surrendered by
We the People. Such is the nature of federal supremacy and preemption.
Incredibly, (given the number of times this point is raised) this principle is plainly evident in the Constitution as it pertains to weapons of war
owned by private citizens. The most devastating weapon of the day were armed ships owned by Privateers but once the Revolutionary War was over, control over the ownership, maintenance and use of these weapons was granted to Congress in Art I, § 8, cl. 11. The same principle behind that grant of power can be applied to modern laws on citizens owning modern weapons of open, indiscriminate warfare like missiles, fighter jets and yes, even nuclear submarine with nuke-tipped ICBM's . . .
So, these intermingled principles of the Constitution of conferred powers and retained rights demands that the powers / interests that
We the People have surrendered we can no longer claim as a right. Of course, that also means that everything that
We the People have NOT conferred, we retain and the federal government can not claim any power to restrain . . . And yes, those interests are more commonly refered to as "rights" . . .