God may not be within the realm of science, but most claims of organized religions are certainly incompatible with science. Religion directly contradicts science in many ways. Science is all about learning the truth, by changing falsifiable theories when proven wrong. Religion is all about having answers to every question, even if they contradict each other and reality, thanks to "faith" that lets you believe contradictory illogical things. Religion kills people, puts them in jail, and denies the truth when it's proven wrong. Religious dogma only grudgingly changes when it's forced to, and even then many people still believe the Earth is 6000 years old. If a religion is so wrong about important things like that, and has insisted on many other things we know to be false for thousands of years, and is used to justify hating gays and oppressing women, then why the hell do you trust anything it says for your moral guidance?