Orcs as Native American expys

 I love this idea. I love it so much because it makes the campaign explicitly colonial - Orcs and goblins and the other monstrous intelligent races are just naturally existing in the land and the humans are explicitly invading and driving them off. In fact it fits in almost perfectly with the backstory to the Keep on the Borderlands, where the Keep itself is established as a foothold into the "wild, untamed" Border areas. I can think of no better parallel to the American frontier of the 1800s and the idea of "Manifest Destiny". I especially love the implicit racism it projects onto the human and demihuman races and the nuanced shades of grey it adds to the greenskin races. The orc children dilemma no longer becomes so cut and dried. Gygax's assertion that "nits make lice" becomes absolutely, categorically, 100% bigoted.