I have gotten this question so many times, I don't think I can overstate it. "Why are you so angry with 'God'?" "What do you have against 'The Lord,' your god?" "What is your problem with 'God'?" If I had a problem with someone who doesn't even exist, I don't think I'd be in my right mind anyway. Though if you want to define "God" as the idea of a supreme being rather than the being itself, then that is something I have a problem with.
Well, far more than just
a problem... The very idea of a supreme being is entirely misguided on every foundational aspect of it. It is not enough to say that creationists have provided me with no reason to believe it, but that they've even provided quite an abundance of reasons
not to believe it. Not only have they shown without exception that everything on which they base their belief is shallow at best and most often fundamentally untrue or unprovable, but that the very same belief leads down paths which are demonstrably harmful, and without merit.
I know a great number of people would like to point to all the wars and killing caused by religious conflicts (something that all religious people will try to argue back against by associating any murderous act performed by atheists to be specifically caused by atheism without demonstrating this chain of causality)... but to me, this is not the most serious issue. Partly because, even in an all-atheist world, we'll still have wars over resources and people who want power by illicit means. Sure, we can also point out that
ALL statistics of
ALL developed nations show that a higher relative percentage of atheists within a reasonably large population is accompanied by lower rates of crime, lower rates of drug abuse, lower suicide rates, lower murder rates, lower teen pregnancy, lower divorce rates, lower obesity, lower school dropout rates, higher literacy rates, higher longevity, and probably a whole bunch of others I can't entirely recall off the top of my head. Still, that's not really what I consider the most serious issue of all because they're effects rather than causes.
No... to me, the biggest problem with the idea of God is that it allows just about anything to be a virtue or a vice. It is completely without morality because it redefines good and evil in terms of obedient and disobedient. It is entirely without thought and without remorse in anything. The common virtue to all religions (
parody religions like Pastafarianism notwithstanding) that has no place being considered a virtue is
gullibility.