Are you contending Russia cannot deliver nukes to the US in great numbers? Like more than 500 in less than an hour?
If so, what data do you base that contention upon?
Or is it just a feeling?
The Russians don't have that many ICBM's left. Even on paper.
They have around 40 old SS-18's that are due to retire next year. If they actually work at all.
90ish Topol's and variants. On paper.