King, I think you are putting a lot of faith in the notion of a space based defense system which currently doesn't exist.
Reagan played that card against Gorby back during the 1980s and it was fiction then. I don't think we've made much progress.
And even if I may agree with you- many of the Russian nukes might not get off the ground, many are in disrepair, most of the submarines could be destroyed in harbor, most of the bombers would get shot down, etc- you still have two problems.
(1) the best way to neutralize those threats would be to hit them first before they hit us. Is the US prepared to launch a first strike against Russia, over North Korea? And if we did that, would the Russians still be able to respond (lets leave the massive devestation that a successful first strike would cause).
(2) How many nukes would it take to bring the US to its knees? If the Russians were to launch just at our cities, and delivered only 100 warheads, you're talking about some pretty small cities turned to dust.
http://www.citymayors.com/gratis/uscities_100.html
Is it worth the cost?
Add to the prediction of Carl Sagan- that it wouldn't take that much to start nuclear winter-
http://www.cooperativeindividualism.org/sagan_nuclear_winter.html
So what about the second strike? If the Russians could even launch a limited strike- let's say three typhoon classed submarines (
http://www.armscontrol.ru/atmtc/Arms_systems/Navy/Submarine/941_Typhoon_PLARB.htm )
are able to launch their payload of 20 SS-20-N missiles, each missile carrying 10 MIRVs (
http://www.fas.org/nuke/guide/russia/slbm/r39.htm )
You are talking between 60 and 600 warheads hitting the US. And this is winning?
The goal of war is to create a peace better than the one prior to war.
You are forgetting the calculus of nuclear war- it's about deterrence. The probability of beginning war is calculated by meausring the possible gains of winning against the the probability of the war being fought multiplied by the amount of damage you will probably sustain.
The role of nuclear weapons is less about turning your enemies cities into radiated dust, but to escalate the costs of war to a height that initiating war becomes an act of madness.
The reason why the notion of the second-strike exists is so that the other side is assured their destruction even in the event of a successful first strike.
Even if the US could launch a first strike, only three russian SLBM could devestate the US at a level higher than any gains from a war in Korea.
So perhaps the Russians might be deterred from launching because of the certainty of the US counter-strike.
But that's a huge gamble with the lives of millions of Americans at stake. In that circumstance, the US might decide to hit Russia first and thereby neutralize the Russian threat before it gets off the ground.
And if so, there is the danger of three Typhoons creating a catastrophe in the US unlike we've ever seen.
Ok, so maybe the Russians don't go nuclear but go conventional. This creates problems with the division between what is strategic and what is tactical. And chances are even if the war was conventional it would tumble out of control, for war is like a fire that consumes everything until there is nothing left to burn.
So yeah, this is bad stuff.