Also, what makes you think at least half of humanity...
CMV: Art is practically useless, especially in the area of politics/making the world a better place.
Building things is art. Also, what makes you think at least half of humanity isn't like you. Even if it's 10% of humanity that is like you, it's 700 million people for whom Even if it's 10% of humanity that is like you, it's 700 million people for whom art is useful. Is art the most useful thing for humanity? Maybe not. It is, however, far from useless.