WHO has no knowledge of how these news reports originated but would like to stress that we have no opinion on the future existence of blondes.
Certainly blondes will make up a lower percentage of the population as ethinic mixing continues in the future. But they won't become extinct, because the genes will still be there. The phenotype will only show up when the person gets the (usually hidden) blonde genes from both parents, but that will continue to happen some of the time forever. There will always be a few blondes.
On Schizophrenia: The reason people get confused about the name is that it is a stupid name. The name does mean split mind, but the idea was that it reflected splitting of asssociations--that is, spliting of ideas that should be connected, splitting of ideas and feelings, of feelings and behavior. This is what the guy who made up the name (Bleuler) thought was the central problem in schizophrenia.
So it's natural that people like to use the word to mean 'of split or conflicted views' but it's still wrong.