Not so. They were postulating scenarios where the threat of a nuclear response would be a deterent. What has got a lot of anti-nuclear leftists upset if that they say it "lowers the bar to the use of nuclear weapons." To take that arguement to the extreme, why don't we just build a nuclear arsenal with only city buster 10 megaton weapons? Oh, those are so terrible we'd never use them!! Bottom line, the US is more secure with a mix of strategic AND tactical nuclear weapons.
So would every other country but then would we be more secure? Our very superior conventional forces might then not be that superior. I prefer battles in our strong suit.