Cancer is a disease and a part of the human condition. If you would like to argue that God is responsible for cancer then don't stop there. You can blame Him for everything else that you perceive as being bad such as war, famine, forest fires, etc. But to be objective, you would also need to credit Him for everything that is good too.
I do, with the exception of War. And I would say the same to you. If you want to credit God with all of the good things that happen in life, you must also hold him responsible for all of the bad. You wanna compare the two? Bear in mind, I specifically said all of the things
God did, and does, not anything that people do in the
name of God. So, all of those hospitals, charities, etc. don't count.
God isn't doing any of those things;
people are. That those people
think they are being "directed by God", is irrelevant. The people who strap on bombs, and blow shit up think they are being directed by God, too, and all of us -
Christian theists included - think they are out of their fucking minds. So, again, if you are going to credit your god with the positive things people do in his name, then you have to hold him responsible for the negative things they do in his name, as well.
So, I say again, shall we make a comparative list?