JK Rowling

“I think that the Potter world contains certain universal themes about what makes us human, what keeps us human, and what dehumanises. And I think that that has definitely connected with people around the world and, in the Fantastic Beasts world, as you know, we’re dealing with adult witches and wizards, but I think the challenges are the same and I think that these themes are themes that resonate globally because they do go back to what it means to be human, what it means to love, the importance of family, and what friendship can mean. How it can save us and connect us in ways that give us armour against the world, to an extent. So I think that these are themes about being human.”

Source: YouTube