I'll use an example. Let's say everyone in this forum were together in a large room. Everyone is visually impaired but can somewhat see to a certain degree. Only two doors lead to possible exits. One door is red with a sign that says DANGER: ALL WHO ENTER WILL BE VIOLENTLY MURDERED. The other door is blue and says ENTER: ALL VISITORS PEACEFULLY WELCOMED. The majority of the room sees clearly that the blue door is the best bet, given that the signs are true to the nature of what lies behind both doors. However, there are a few people who say that, "No, the blue door is obviously to be avoided. The red door is where we want to go." The majority is going to go through the blue door due to corroboration.
Now, let's say that atheists and theists in the world are gathered and counted. For argument's sake, we'll say that theists outnumber atheists (I don't know if that's true in reality but I'm guessing it is). By reason, we would say that a god exists strictly because most people can observe this god. ..BUT and a large BUT, in reality, this wouldn't do only because all theists do not agree on what god is, who god is, what god does, how god acts, what god thinks, how god thinks, if god thinks, if god is intervening, if god is not intervening, where god is, etc. etc., which divides the number of theists into X number of catergories based on personal belief. All atheists, becoming the majority, agree that no gods exist. Either the god of classical theism has a personality disorder, there are many strict personal gods (polytheism), or the best bet is that god doesn't exist.
Let's take this forum for another example. Judahxulu, GOINGTOHEAVEN, Dro, young_king, alissowack, solid analysis, waterproof, and disciplined insight all read from the same fuckin book but can't agree on god's qualities. If god existed, and all posters experience god's existence as they claim, the logical assumption would be that all posters agree on who god is, thus it would be a great chance that god exists. This is not the case. And that is a microcosm of the world.
The majority of the world sees the apple as red. You may see it as blue. That's fine, but hey, we don't.
Back to the drawing board for you, solid analysis : )