Islam is about tiring the reader, not so much about truth (Scripture literature)

[Draconic Aiur]

Your view does not explain the reason why some Muslims practice their religion based on real, personal belief, and total understanding for its rules and constraints.

The other opinion is that constitutions and codes of ethics that humans practice here on earth are not really satisfactory in all conditions; thus some people seek refugee in Islam's holy Quran. Islam as a word means submission as you said; and a Muslim must take a personal oath to abandon human beliefs and seek total refugee under God.

In other words; the secret for Islam's success is that it's simply providing a better story for our existence and a better system of rights stated in the Quran. Human laws and constraints failed to protect humanity and caused 2 world wars and caused us all to reach the bottleneck of apocalypse: nations of confused people aiming nukes at each other.

Because they are brainwashed at a early age or brainwashed when at a weakness state like after a death in the family or a nation in a warlike state. It happens many times when someone offers  that a loved one is going to heaven or you can go to heaven or burn in hell if you do anything wrong. Control and manipulation plus sweet candy voices of a faraway land called heaven where an all powerful being loves you and has chosen you, who doesn't want that right? Islam is just one of many, but like you said 1 billion Muslims live in the world. So lets change that shall we:1 billion brainwashed noobs