Indeed. Large parts of the west went through this process less than 20 years ago in the run up to the invasion of Iraq. And something like half a million died. It’s not like this is just a theoretical exercise.
Just go on reddit and you'll see several videos of Ukrainian drone dropping bombs on clearly wounded Russian soldiers and you'll see a whole comment section celebrating the war crime.
I feel like the Iraq war is not a good example if you want to claim that it was good people misled. Millions (including me) protested against that war. There was really no excuse for supporting it.