> consideration to the harms done to non-combatants, both in the sense of "civilians" and "neutral countries".
Knocking down Starlink is perfect version of no-harms strike. Nobody dies, only person negative affected is Musk and some techno bros.
With 45% probability, assuming he isn't assassinated.
The tie with Musk would make your hypothetical very convenient for Iran as an empty threat though, so there's that.
> Nobody dies
Loads of people die from communication failures.
More importantly, this would only even be a threat if it could actually cause a kessler cascade, because there's too many Starlink satellites to target directly even if you own SpaceX.
This matters because such a cascade will also mess up everything else in close orbits regardless of nationality.
It's like hypothesising someone might use CFCs as a chemical weapon: sure, if they want to make enemies with basically everyone all at the same time.