It doesn't actually matter who attacked whom first.
Except... it does. Your position literally is "I don't want to admit that there is a wrong side in this conflict, even though there clearly IS a wrong side". As the biggest reason why discerning right from wrong - or less wrong from more wrong - in major real-world conflicts is often hard (incomplete or intentionally warped information) is absent in DnDland, which we see through God's eyes, we can actually tell which side bears main responsibilty for an ongoing conflict. And in DnD's context it is generally not going to be dwarves.
Objectively, yes, there is a Good side and an Evil side to the conflict. My point, which you seem to still not understand, was that you and Olescamo seem to think that "hero" is an objective term in D&D, like Good and Evil are. It is not. Hero is an extremely subjective term. The Evil goblin culture would consider the PCs to be heroes, even while the Dwarves considered them to be monsters. A culture's heroes are exemplars of
that culture's ideals.
My point was that if the PC-lead goblins wiped out the dwarves, Olescamo would consider the PCs to be "monsters" regardless of how laudable the goblins would consider their actions.
And he will be correct.
But as I explained above, being called a "monster" by one group does mean you can't be called a "hero" by another. How do you suppose all those baby goblins feel about the mean old dwarves who killed their parents?
But if the PC-lead dwarves wiped out the goblins, everything would be ok because the Good-aligned team won.
And here you are misinterpreting his position.
Then maybe you can explain his position better. To me, it seems like he's saying that only Good-aligned creatures can be Heroes, and that doing Good acts makes a character Heroic. Because killing Evil creatures is a Good act, the PCs are Heroic if they fight for the dwarves, but not Heroic if they fight for the goblins.
The fact is, any setting that encourages killing sentient beings, presents genocide as an acceptable solution, and mechanically rewards combat and pillaging cannot be based on the Renaissance ideals of Human(-oid)ism and Enlightenment.
Actual Renaissaince ideals (ones that people used to guide their lives) were "hatred, greed, superstition and intolerance". Not trolling here. "Renaissance" period = witch hunts and religious wars.
Seriously, where did you find these "renaissance ideals"? I'm no expert, but from what I remember about European History and a quick Google search, the Renaissance was about the pursuit of knowledge (not superstition, and actually ran as a counterpoint to the Church and the Sophists), the study of the Humanities, and finding Man's place in the Universe. Hatred, greed, and intolerance are present in EVERY age, and therefore cannot be said to be the defining characteristics of any given period.
That aside, I have three questions for you:
1)Do you condemn the action genre in all of its forms on principle, because of its inherent violence?
2)Do you have religious reasons to believe that sapience inherently bestows free will (and therefore DnD saying that it doesn't offends you)?
3)Can you quote me a single actual DnD source where good-aligned PCs are encouraged to kill noncombatants?
I'm not sure I understand the point of these question, but I'll answer them anyway.
1) Absolutely not, what gave you that idea?
2) I do, but no it does not offend me to say that it doesn't. On that note however, why do you think D&D says it doesn't?
3) Well, the Book of Exalted Deeds says this:
Most creatures described in the Monster Manual as “always evil” are either completely irredeemable or so intimately tied to evil that they are almost entirely hopeless. Certainly demons and devils are best slain...
But that doesn't necessarily apply to creatures described as "usually Neutral Evil." Instead, this is my logic:
1Good and Evil (and Law and Chaos) are objective values in D&D.
2Anything that registers as Evil under Detect Evil is, by definition, Evil.
3It is an objectively Good act to eliminate Evil - this is why things like Smite Evil exist.
Given that, if anything - even a noncombatant - registers as Evil under Detect Evil, it is an objectively Good act to eliminate it. The
Exalted character might want to take them all prisoners, talk to them for days about the error of their ways, and forcibly redeem them - but a Paladin would not lose his Paladinship for simplifying things.