What’s the purpose of humanity — for what? Wherefore? Towards what end?
Silicon Valley says—
Let us all get on a spaceship and ditch this dying earth! To Mars and beyond!
The socialists and Christian say: “let us end suffering on planet earth! No more pain and suffering for anybody!”
The utilitarians say: “let us make everybody equal on planet earth! Let us create a society in which nobody needs to work or labor or toil anymore, in order for all of us to pursue our own creative and artistic ends!”
My practical thought is this: don’t concern yourself too much with “humanity“. Rather, focus on your solo self.