Why Japanese love manga/anime

Here is my self-claimed reason (excuse) on why Japanese love manga/anime.

Before Chinese characters were imported from China into Japan, Japanese did not have written language. Japanese tried to learn how to write using Chinese characters, it was very difficult for them. Japanese then tried to invent different ways of writing, such as creating kana letters, to make it easier for Japanese, but written language was still used only by a small percent of high class Japanese. Several hundred years after Chinese characters were first imported, Japanese were finally ready to learn how to write. They created text books and used in schools to teach students. Since they did not know how to read/write, the text books used many pictures to help understand the written context. This is how manga started in the Japanese history. So in history, manga was actually text books!