If the Nazis had won world war II and had successfully slaughtered every Jew on the European landmass, and then had brainwashed everybody to believe that such an action was good because it freed up resources for greater cooperation between the Aryan race, and had removed a known enemy of the Aryan race. On what basis, on naturalism, then could we say that the Holocaust was “evil” (or would we?)
Personally, I tend to be less interested in arguing for how
I think words like “good” and “evil” should be applied an more interested in how other people are using them. What goals or values are they pointing towards? Do those goals/values correspond to reality? Do the things they call “good” actually help realize those goals/values and are the things they call “evil” actually hindering them? Are there different goals and values that fit with reality better? Basically, I tend to act as a
Pluralist Moral Reductionist because I think this is a better way at getting to the meat of the matter.
Does this mean that words like “good” and “evil” are void and meaningless in my personal life, that I don’t have my own preferred definitions that I believe do point to something real or that I don’t use them to point towards some sort of goals and values that I possess? Of course not. It’s just that I don’t want to get into drawn-out conversations with people about how those words are best applied when what we really want to be talking about is the concept behind those words. You want to know if I can use the word “evil” to describe the Holocaust. Yes, yes I can. You want to know if I can convince you that my definition of the word “evil” is up to snuff? Probably not, no.
Why can’t I? Two reasons First, you’ve already said that without God, nothing can have meaning. My ethics don’t reference God since I think that there is no God, so my ethics must be meaningless to you. Similarly, since your ethics must be based on God in some way, your ethics are going to be pretty much meaningless to me (I say “pretty much” and not “definitely” because I’m fairly confident that I could actually tease some non-God values out of you if I was interested in trying).
Second, even if it were possible to convince you that a naturalistic account of ethics can pass muster even without appealing to a God in some way, I’m not the person to do it. I’ve mentioned two theories (Goal Theory and Empowerment Ethics) that I think are strong contenders, and I could adopt one (or a combination of the two, since I do see some overlap) and explain why the Nazis were wrong. But this is only going to trigger a long back-and-forth as you (and probably a half-dozen other posters) try to poke holes in the theories (because, going back to #1, most of you probably
can’t think these theories are valid). I may be able to respond to you objections for a time, but eventually I’ll fail, not because the theories are bad, but because I lack the philosophical chops to put up a robust defense. Your best bet is going to go straight to the source and read what the professional philosophers who developed those theories have to say. I can help point you in the right direction if you’re interested in doing that.
But all of this looks like I dodging your thought experiment. I don’t want to do that, but I have to approach it in my own peculiar little way.
The crux question for morality seems to be “how do we convince people to do things they don’t want to do?” Most of us think that the Holocaust is evil, so we don’t really need to be convinced; we can employ our preferred ethical theories to explain why we think it’s bad to kill Jews, and those reasons are going to sound convincing to us. Even if our reasoning is bad, it’s going to sound reasonable to us because we already agree with the conclusion. So we need to keep in mind that the people we’re trying to convince are the Nazis, not the people who think like us.
This is where I’d fall back on Pluralistic Moral Reductionism and ask “what are the Nazis trying to accomplish?” They thought that Aryans are a superior race and that Jews were inferior. They thought that Jews were to blame for their society’s problems and needed to be destroyed. Those things are factually wrong and I could argue based on that. They could say that they wanted to build a stable, healthy society, and I could point out where things like genocide and world wars are antithetical to that.
This wouldn’t be an easy thing to do, but using the word “evil” as a bludgeon isn’t going to get me anywhere any faster. Invoking the will of God won’t, either, because they either a) don’t believe in God and don’t care, or b) think that God is on their side, which would then necessitate a theological discussion about who has the right idea of God. No thank you, I’ll stick with trying to argue from observable facts.