The concept of 'God' - a higher being, comforts a lot of people, and they will go to endless lengths to ensure that their comfort is not removed from them.
That is why legions of people devote their lives to their god - in what ever form, and if it comforts them, fine.
Those of us who feel no need of such comfort happily coexist alongside believers, unless the believers try too hard to inflict their ideas on others, which leads to conflict.
It really boils down to that.
I am covered either way - if there is no god and no afterlife, I will know nothing about it. If there is a god, I have endeavoured to live a good life, and he will know this and forgive me, and that suits both of us.
As for the natural horrors in the world - Sugar happens.