I think the idea that another race coming into Skyrim turns out to be the Dragonborn is cool. The Nords thought it would be them but it wasn't. This idea could have been stronger if other races playing as Dovahkiin met more resistance from Nords. People definitely should have commented on the fact that you can't be Dragonborn because you aren't a Nord.
u know what? that's exactly what this game needs
let's say ur not a nord and ur the dragonborn! in my opinion there should be like more talk between npcs on how they "doubt you" and u need to prove and certify ur truly the dragonborn, more than just simply shouting!
the greybeards those should test u even further and perhaps discuss amongst themselvs how would they accept one which isnt of their own kind to be this dragonborn!
the game can force u to be dragonborn but at least dont take it so leisuraly, it should be more about proving ur worth if ur not a nord, after all ur new to this land.