The Struggle to do Good

[The Grand Nudger]

You're an atheist--so under that umbrella it would just be your opinion that harming people is objectively evil.

I'm not sure why being an atheist matters?  You believe in a god, do you not also think that harm is a relevant fact of moral import?  

Well, I'm a theist, so I actually have a good reason to believe in objective moral values and duties. You don't.

All the reason that a person needs to accept objective moral values and duties is to think that moral statements purport to report facts, and at least sometimes, get those facts right.  That's it.  That's the whole enchilada.  No gods required, regardless of whether they exist.

Going by that line of reasoning, the universe being 13.8 billion years old would magically become subjective it if a person told me that was the case. Like I said before, you don't understand how to reason--which is probably why you're an atheist.

If that were the only reason you believed it, then yes..-your belief- would be subjective.  

So where did this principle of "harming people is objectively evil" if not God?

Watching people get harmed, and being harmed ourselves.  A famous non natural realist once said that if you wanted to know what bad was, watch a group of adults kick an infant to death.