It all became so clear when I saw a /b/ thread about this.
The authorities in Japan are adding dubious amounts of Glycyrrhizin http://en.wikipedia.org/wiki/Glycyrrhizin into different foods to turn their citizens into hideous freaks.
Studies have shown that even moderate amounts of the chemical reduce testosterone production in young males, thus stunting their growth and making them more feminine. This is the reason behind such phenomena as visual kei and the Japanese bishounen/gay culture in general. But that's not all. In the numerous cases where the dosage of Glycyrrhizin hasn't been large enough to induce immediate homosexuality, the lowered testosterone levels decrease sexual interest towards women in pubescent boys, and greatly increase their nurturing instincts towards small children. This is how the moetaku/lolikon culture got its vast audience. There are now hordes of sexually frustrated males without normal objects of desire, and who can only achieve satisfaction through exploiting their hideously perverted instincts, originally meant for protecting their small female relatives. When you combine this with the other existing theories concerning the pedophiliac nature of todays otaku culture, and the great availability of anime and other lolikon entertainment, you've got a huge conspiracy of government officials, food companies, and major TV stations like the NHK, aiming to turn all Japanese men into weak, gutless, and easily controlled nerds, for effortless take-over of the country, and maybe soon, The World. All the pieces click together, you just have to open your eyes and see it.