Suggestions like these are just too much for me. It's throwing the baby out with the bath water. I'm quoting multiple people here because I don't want to pick on any persons ideas specifically. Rather, I'm saying that there is a limit to how "rules light" a system can be, and these are examples that go past that limit (IMNSHO).
There's only so much you can remove from D+D before it stops being an RPG system. I'm not talking about just "feel" or "fluff". The base game needs a core set of solid mechanics that the rest of the game is built from. For a fantasy setting, that includes things like elves and goblins that are mechanically different from humans. Mythical beasts that are aligned with gods and demons. And fencers and knights and berserkers that have different numbers on their character sheets next to their swords, not just different flavor text.
There is no reason "inclusive" has to by synonymous with "rules light".