If the world wishes to be perfect, then it must work towards that, whether that means facing natural disasters, wars, disease and everything else or not. If I simply make the world perfect then no one will have learned anything, there will be no true course of history and people will eventually revert back to the old ways because there is nothing to teach them otherwise. Even if the world is never perfect, we will still be learning to live with each other and to deal with problems as they arise as well as teaching future people to do so as well.
It's what we call a necessary evil.
It's what we call a necessary evil.