Just imagine being a God and you think it's oke for your minions to trow a 13 yo in Jail for 10 years...must be a really grumpy and not really self-assured "God"
The above is why I believe that there is no god, of course people may believe whatever they chose to, but in REALITY no such thing exists. Also it is the perpetual question, if there is "one true God", who is it? My god? Your god? Zeus? Some other got of some other species on some other planet in some other galaxy? (The Delta Quadrant?)
The main problem is not the idea of God (imho god = love)
The main problem is the people who self define/proclaim as the god's chosen people on earth.
Well there goes your problem, you're countering something that these religions don't claim in the first place: None of the Abrahamic religions (Christianity, Judaism, Islam, etc.) claim that God is pure love, butterflies and spreads happiness on earth.
Their scriptures explicitly talk about how life on earth is (also) filled with pain, disease and man-created problems.
I'm not sure why this criticism ("What kind of god gives kids cancer") on religion is so common in Western countries... it's a giant strawman that a simple question to a believer of such religion would dispell.
Either way, this discussion is moot since there is no god :)