The crucial point here is really that Russia is so lazy and so careful or maybe hesitating with reactions. It is bound to have a limited amount of Cruise Missiles, IRBM's and Tactical Nukes. This limitation makes the entire situation and plan or lets call it for what it is Operation Unthinkable, a numbers game. Lets be very generous to NATO's ABM and Anti-Aircraft capabilities. Let us awesome the US has made its preperations since years and have build up entire ABM shield in sufficient numbers (sufficient numbers i will come to that), let us be another time generous of the capability of those SAM's and ABM shields against IRBM and Cruise Missiles is good enough to be almost immune to older generations without advanced ECM and flight trajectory changing to avoid interception. MEaning...they have planned the attack for decades, all their Meatshields are on alert and ready, the US initiates its proxy move and at some point, unlikely to be early from the start of the hot war, russia will have to respond, it will fight for quite some time this proxy war (ukraine) is first wave and 2nd wave will be poles looking at their political sphere and russian hatred, so after some years of slow depleting proxy war, Russia with an unknown leader will have enough of this shit and do what they would do in such situation, trying to overcome ABM shields in europe and trying to destroy key points of logistics which are concentrated almost only in Germany. Germany strategically is absolutley crucial and important for both sides, Projection over Europe of west and east goes always through Germany it was like that during 18th century it is the same case in 20th and 21ct century. So losing entire germany for russia is not an option. They will rely on strategy of defeating ABM shields and logistical key points in Europe and essentially germany.
Some numbers before here have been posted of the IRBM and ICBM's in russian inventory, for this kind of operation we can only suggest IRBM's and Cruise Missiles. Right now there is only one type of IRBM useful to overcome ABM and SAM without first dealing with ABM/SAM itself that would be Iskander-M which can change its flight trajectory, the rest of the current in active service missiles have no such feature, so giving the american Euromeatshield generoustiy to defeat any other type of missile would leave Russia with less then 100 IRBM's for this job. Statistically speaking this ABM shields can indeed cripple russia to such an extent it would need to rely on ICBM use in Europe against countries which are not possible to lose for short nor long term future. Nuking military assets is one thing, using Strategic weapons there were designed to be used against US is a total different thing, that will only bring more russophobia to europe and it would defeat its own future with Germany, since the greatest threat to the US is not China and Russia united but Germany and Russia united. The projection of political and economical power of these so called 1st World is Germany, call it indoctrination, call it self-evident century old perception whatever, that are the circumstances.
I guess it was franco who has posted a short list of Russias inventory of ICBM's, IRBM's /SSBM's and Cruise Missiles and the numbers of advanced BM's is very short, short enough to deal even with a backwarded ABM and SAM sytems like the Americans.
If franco could provide again the numbers, we could see it even clearer what i mean. One of those numbers was just as 88 high of advanced Ballistic Missiles. So if this circumstances and reluctant reaction of russia stays the same with the same low numberes of advanced IRBM's,ICBM's, SSBM's and Cruise Missiles then it will end in a totalitarian war and exchange of ICBM's or a decade long war with only one benefiter, once again...