How can we respond skillfully and forcefully to those who laugh at themselves for being black?

I remember a saying, don't be angry with yourself if you want to be angry with others. In other words, you must be optimistic and thick-skinned. For example, when someone says I'm black, I say yes, I'm an overseas Chinese in Africa, and the other party is generally speechless, because as the party who takes the initiative to ridicule, he must have a set of dialogue simulations in his mind. As long as you don't follow each other's routine, they can't help you. If your mouth is full of guns,