Dnd has a simple goal when it comes to building characters; let us play who and what we want to play.
Can you give me a source for this assertion? It's not really my expectation.
I also don't mind having negative modifiers, I don't mind stat limitations, I don't mind permanent ability damage or death saving throws. I think the game used to expect your character to take two steps forward and one step back, but they've gradually taken the steps back out of the game but forgotten to also nerf your steps forward.
For it to be objectively better, then I would find it more enjoyable, I don't, so what now? You'll get nowhere by substituting in "objectivity" for an argument, it'll just become circular logic, it is better because it is better.
If you want to read more about fantasy race as allegory check out Racist Tropes on Drow STOP IT though it was locked for a reason, some of it was still interesting
