You don't see thinking about the nature of the world and the universe as being useful? You don't think conceiving of new ideas, coming up with new solutions to human questions of existence and meaning, analyzing the very nature of humanity is useful?

There's a place for science, sure. A big one. But would people have ever thought about experimenting with and manipulating the world around them in scientific ways without first trying to understand their own place in the universe? Everyone asks the question who am I at some point in their lives, don't they? Isn't that philosophy, in a minor scale? You want we should stop asking those questions entirely?