Oh, I understand emotions, no problem.
But....
Let me reimnd you that any kind of armed combatants - uniformed and wearing insignia or not, and regardless of their ethnic, national- or religious backgrounds - are protected by the International Humanitarian Law.
Correspondingly, any summary execution of them is a war crime.
Let me remind you that Croatia paid a deft price for ignoring this fact when liberating large parts of itself from Serbian occupation.
Ignoring such facts is certain to prove extremely costly for Ukraine, too.
Mistreatment of civilians and combatants was, so far, the primary difference between the Russians and Ukrainians in this war. The moment the ZSU starts mistreating captured combatants, that difference is disappearing.