Why does it emphasize it in the first place? Human discomfort with it and emphasis is often selected by survival bias essentially. Not to mention the syncretism

Why does it emphasize it in the first place? Human discomfort with it and emphasis is often selected by survival bias essentially. Not to mention the syncretism of Japan it has observed and joked to have local festivals at Shinto Shrines, weddings at Christian Churches, and funerals in Buddhist Temples.