As far as I know that is correct. I personally don't like because it's dehumanizing them when we don't have to.

If we were in combat and actually needed to shoot at them and needed to dehhumanize them for our own psychological health that would be one thing. But we are all probably safe sitting on the toilet, so we probably shouldn't need to resort to it.

I think it also implies guilt of all Russian soldiers. They are deserving of all protections under international law, mainly getting shot at on the battlefield and a dignified confinement when they surrender or are incapacitated, until proven otherwise. And if they did something horrifying enough to be called an orc, they should probably be hanged, after trial, and not even dignified with discussion.

It is. Its important to remember that pro russian posters and other posters from authoritarian countries are already here to muddy the waters. Propaganda is the name of the game and these sorts of talking points are their main techniques to derail a conversation.

See, the problem isn't the authoritarian government, its racist westerners who just hate anyone. This way they expect you to be tolerant of their actions, while their actions are totally intolerant of others. Its their ide of a moral gotcha.