Then again the so called "rational" actors would be less likely do bad things. Just imagine how much better place world would be if in response to drone strike by Obama or Biden the NYC or Washington DC was hit by nuclear weapon. That would surely put end to those antics.
If you think the near-certainty of getting wiped out entirely at some point is the right price for avoiding wars, then sure. I'm not sure most people share that preference.
That's the happy path.
The failure path with an unhinged dictator causing global destruction also gets much more likely.