There is no need to go on a quest to disprove god because god has never been proven. You can't prove something doesn't exist when it doesn't exist, so there is no need to cultivate anxieties over it. There is enough evidence that a man known as Jesus existed that I find it a reasonable proposition. He seems to have been an oddball rabbi who stepped on too many political toes. He apparently tried to be a Messiah, but failed.