What?
The question is not simply who was killed, whether civilian or military (or paramilitary), but who was doing the killing. Your statement directly implied that of the 14,000 all the killing was done by the Ukrainians. That I doubt.
Let’s say that 14000 could have been alive if they wouldn’t start the war.
Putin has killed more Russian speakers than any Kremlin leader since Stalin. And Putinists couldn’t care less.
The question is not simply who was killed, whether civilian or military (or paramilitary)
Noam Lubbell, Extraterritorial Use of Force Against Non-State Actors, Oxford University Press, 2010, paperback 2011, pg. 139:
Civilian persons, as with civilian objects, are not the subject of a descriptive definition within the law, but are defined by negation: anything which does meet the definition of military is civilian.
Anyone considered paramilitary, but not truly military, is a civilian, for purposes of the hairsplitting world of the laws of war.