Why do we fight? To protect what we love. Home, family, and a good meal
The importance of your race depends on what you want to do in the game imo.
PvE and RP? Inconsequential, mostly a matter of cosmetic preference. PvP I would probably roll Orc for that 20% reduced stun duration. Gnome if you’re Alliance for the 1 minute Freedom.
Also for rage, its our resource without which we can’t do anything.
This forum thread is the best example of triggered angry warriors. 
What? I’m confused by your comment
“Not enough rage”
Its a reference from not having enough rage to use your abilities.
Why we fight? To get rage to use our abilities