@Locusts. No, the existence of war, or food shortages, or of suffering do not prove that there is no god. I am not aware of anyone here who has said so.
On the other hand, I have seen several posters, like yourself, witter on that we have all been created by the all-powerful, benevolent, loving god - a god, moreover, that will respond to prayer etc - an intercessory god. A god that can perform miracles, we are told.
In those circumstances, I think it is reasonable to ask why such a god would allow such injustice, such inhumanity to continue, most especially since a lot of that injustice and inhumanity and barberous and downright murderous behaviour has been carried out in gods name.
Were I an immensely powerful creator god, able to suspend or circumvent the various natural laws, I would be very inclined to chastise those people who have taken my name in vain.
So, what miseries of the human condition there are is not proof of a lack of god, but the mere fact that they continue leads us to question whether such an entity does exist......