Fair enough. Let's focus on what was said in this thread.
Is it fair to say that some people feel that they need clearly telegraphed enemies that can be slaughtered without second though, like the Doomguy gunning down demons?
Because, whilst there certainly can be situations where the enemies are just pretty unquestionably deserving it, I don't think it is too much to ask this to be telegraphed by the situation, by what these people have done and are about to do, rather than by their mere species or appearance.
Furthermore, I think that if we are to have a game where characters feel like real people with real feelings and real morals, then I don't think violence needs to be completely guilt free. Like even if it might be necessary and justified in the situations good people probably should not solely feel unfiltered joy when killing sentient beings.