A question about nuclear deterrence - what is the difference in these two scenarios?

For our OP @Celtic_Kitsune:

Here’s a thread from 2010 that touches on some of the moral dimensions you’re apparently interested in.

Here’s another thread from 2011 you might enjoy reading. It’s about a lot more than just what the first post talks about. Note that 2011 was about 5 years before Trump burst on the political scene.

Lastly, here’s something from 2017, so in the middle of the rather unusual Trump presidency.

As an overall comment …
Since you’re fairly new here I’ll also point out that as a general community custom we generally avoid continuing a long-dormant thread. Many of those posters are no longer available. Better to continue the conversation here with cites to there or begin a whole new thread of your own with cites to whatever other thread(s) or posts you feel are appropriate to set the stage.