What do these people mean by laughing there? Do you want to see other people's jokes?

Others joked that people who look down on themselves have no backbone. They thought they would say something brave, but it turned out that they looked down on themselves. The contrast is so great that people can't help laughing. "You're running away" means that the other party doesn't dare to face up to the reality, not to find out the cause of depression, but to surrender as soon as he opens his mouth. This in itself is an escape.