Since holy books are all creations of mankind, any proof disclaiming what they say is a waste of time simply because I agree with you.
As for the rest, you do have valid issues that anyone who Questions needs to address. Good for you. You do Question.
Mankind's Goal as I see it: People want to have it made. They want everything to go their way. They do not want any adversity or troubles of any kind. They want Happiness all the days they exist.
Question of the day: Is this what God wants??? Isn't God's Goal different? Why are you here? Are you here to have it made? What purpose does everyone serve? Does eternity have purpose? If eternity has no purpose, what are you going to do for that length of time? Yes, there are a Million Questions.
Has not religion corrupted everyone's thinking by offering paradise through one mere lifetime of following their rules? Are they not feeding people what they want to hear in order to gain followers? Just as you have figured out, does what they teach really add up? Of course it doesn't.
Everything about God MUST add up or you can not have the Truth. As I see it, one must Widen their view, Look at the entire picture, and Study that which exists beyond the surface. Just like with science, there is always more to Discover even after one Discovers something. As I see it. THIS IS GOD and GOD'S ACTIONS.
The Journey to know God is not going to be in any book.
Finally, God places no demands, threats or punishments on your or anyone's choice of what they choose to Discover. God is Not religion.
Mostly rehash or opinion sans evidence
Mankind's goal is to live, reproduce to carry on their species. All else is just personal.
Finally, there is no god to place demands, but religious people put demands on others in their gods name.