Asks Renaud Camus in an article at Boulevard Voltaire. I link to it rather than excerpt from it, as my translation skills are not the best; it is in French.
The title of the piece is 'France: victim of a forced marriage', and the message is that 'metissage' or the mixing that Sarkozy spoke of as an imperative a few years ago, amounts to "eugenics." Well, it definitely is an attempt to alter the actual genetics of the people of France, whether they agree or not. Take a look at the article.