What missiles, specifically? Because you can’t just wave a magic wand and outfit an ABM launcher to launch strategic missiles. All sorts of logistics involved.
Can’t give specifics but I remember reading a Russian rebuttal to the deployments in Europe stating that they could be converted to an offensive capability without much effort. It was pretty recent, probably around the time of the latest deployments.
I was a nuke....but propulsion related. Not asplosion related.
Growing up in the 70’s and 80’s, with duck and cover and all that. It seemed much more real of a threat back then. I can’t imagine anyone pulling the big trigger at this point.