This is a perfect example of how mainstream commercial television services are willing to trade truth and reliability for stereotypes and simplicity.
The first link below takes you to a report dated 22nd of May 2009 by an Australian celebrity swimmer personality who reports the extinction of redheads and even adding another joke-y stereotype about redhead women being more sexually active.
The second link is dated 25th of November 2008 reported long before the first link and should have been read by anyone doing a report on redheads who bothered to google “Redhead News Reports”. The report is written by a leading Australian celebrity scientist and radio personality of the ABC, a non-commercial news broadcaster in Australia. The report dispels the claims made by the first link and comments on how these stereotypes come about.
Good onya Doctor Karl!