Goblins and Orcs are Dwarfs

My joke aside that dwarfs are just orcs with shitty fashion, I think should you look back to the past as far as D&D and fantasy rpgs in general treated them, ignoring to an extent actual folklore, fairy tales, and myths, that from goblin to dwarf there is a continuum of dwarfishness. AD&D Goblin:"...are fair miners, and they are able to new or unusual construction in an underground area 25% of