This baby dearth, combined with the ability of the japanese to keep their elites from increasing mass immigration, means less supply of labor, which means higher wage (remember supply and demand? It applies to labor, too). That means that the corporations that support the corporate media via advertising buys will pay more for labor. The media hates that!
Also, fewer people means fewer consumers for the products advertised in the media. The media hates that!
The media is the enemy of the majority working class citizen of the developed nations.