Alright, darwin's ideas may not be 100% relative to today, but his work on decent with modification change the world. Which is exactly why we still read it and other classic books; like Martin Luther's 95 Theses, or Sigmund Freud's Dream Psychology. If we take the time to learn about literature of the past we can better understand how we got to where we are today and where we need to go.

It explains so many things. It's an inescapable idea, which is why we get such hostile responses to it.

Darwin fought through religious dogma and studied facts. He presented what he saw.

Darwin's ideas are, and have always been outdated, unscientific nonsense. The fossil record, as well as all common sense, dismisses his work to the lowest realms of fiction.