Relatives are superstitious and don't listen. What should I do?

In fact, this kind of thing, like a brainwashed person, is impossible to force him to feel another world. What you have to do is subtly make him feel the difference in the world and make him understand that it is ok to have faith. However, we should not be too enthusiastic. For example, he said that the world was built by Jesus. You shouldn't take a circuitous approach. First, slowly refute him from the vague thing that the theological earth is the center of the universe, and let him slowly feel from his heart that theological things are incorrect. This kind of thing should be slowly let him know that it is like a frog that died in warm water. If it gets hot at once, the frog will jump away.