The term NEET, meaning "not in education, employment, or training," is used primarily by anime/manga otaku (fans), who hold it as a glorious lifestyle. Obviously this lack of productivity is harmful to a nation economically, and can lead to personal problem such as a lack of social skills and obesity. Several anime/manga have depicted NEET characters in a positive light, further justifying this lifestyle to fans.
KEK!
Many anime fans, instead of pursuing real relationships, are encouraged by anime to have a "waifu" or "husbando," an anime character they have romantic feelings for, to substitute a real person. As mentioned prior, anime fans often hide away in their rooms watching anime and not going out into public, preventing social interaction. Visual novels also give them what they feel is a substitute for interaction with people. Anime itself glorifies social ineptitude, with many anime in the "ecchi" and "harem" genres featuring protagonists who are socially inept but still manage to garner the attention of multiple attractive females, creating inaccurate views of reality.
Anime encourages pedophilia.
"Lolicon" and "lolis" are things often discussed and fantasized about by anime fans. Lolicon is a portmanteau of "Lolita complex," a Japanese expression meaning pedophile attracted to underage girls. The alternate is shotacon, which is the same but with underage boys. Many anime fans call themselves lolicons and masturbate to lolicon anime and manga under the assumption that it isn't child porn. Many non-hentai anime even feature children with erotic undertones. The popular Monogatari franchise is an example; they started with one "loli" character, and her popularity led to them introducing more similar characters and increasing the sexual undertones surrounding those characters. The randoseru, a backpack used by Japanese elementary school children, has been adopted by the anime community as a symbol of lolicon and a sexual symbol. They often argue that it's just anime, and not real, but as studies have shown, pornography leads to the development of new fetishes and subconsciously promotes sexual aggression and promiscuity, so the hentai IS changing them, regardless of if they believe it or not.