"Everyone said I was blessed by...."
probably something yet to be implemented.
The third racial question usually doesn’t affect you personal story at all. Charr are the only exception.
It modifies youe home instance. In your case a diffrent NPC will appear in your home but the just says “Greatings” or something along the line, so it doesn’t matter.
Yes, it is not really interesting but they plan to change that in the future.
Desolation – Mistress of significance level
AFAIK, Guardian Story elements have nothing to do with your character in anyway either. Not sure about other class specific choices.
No effect on your story at all.