We don't dehumanise them to make them feel bad or anything.

We do it to make the necessary act of killing them less hurtful to our mental health.

If russians want to leave Ukraine in peace they leave as humans. But if they choose to die for putin, we might as well call them orcs.

On another note: Orcs are an adequate comparison because they once were elves who were then tortured and enslaved. You know... Just like the russians.