First off, Daily Mail, automatically disgard anything they say which could be turned to a racial slant.
Secondly, difference between causation and correlation. Just because more people with blue eyes do well, does not mean that blue eyes causes you to do well.
Thirdly, no, redheads will not be extinct in a hundred years. This was brought up about ten years ago in relation to blondes, and was proven to have little or not scientific backing, and the same is true of redheads.
Fourthly, oh hang on. Just realised I have blue eyes, do any of the brown and other colour eyed people need me to lower the intellectualism of my argument? (This is a joke by the by)