You can’t eject from commercial jetliners. You can’t even jump out of most of them.
There used to be some that had a backwards facing door with stairs you could jump out of. Famously, D. B. Cooper did that. But afterwards, most of these doors were secured so that they could not open during flight to prevent future hijackers from doing what D. B. Cooper did.
Targeting civilians is the poster child of war crimes.
You can bomb soldiers. You can bomb soldiers mixed with civilians. You can even bomb civilians making weapons in a factory. But you can’t just starve and bomb civilians for no reason. And you can’t bomb 100 civilians because there is 1 suspected fighter. Has to be proportional.