Can we change our fate? (Kafka on the shore)

I don't really believe that we're all put on this earth with a purpose, because that would mean a large portion of the population has the only the duty to suffer. I don't want to live in a world in which that happens. 

Beyond that, believing in faith can be a very dangerous thing. To believe that God somehow is out there fixing things for us is a dangerous way to think. It takes away the liability and responsibility from people living their lives. An example of this is Christian science: the belief that God will cure all diseases through prayer, and that the use of modern medicine is immoral. 

This belief leaves sick people to die in hospitals around the country. Belief in fate is a dangerous thing. Once it is seen as a facade, it can ruin lives.

For this reason, I choose not to believe in fate. If it exists, fine. I won't know any different.