A matter of majority

Why is human life so full of conflicts, separation, pain, violence and why it ends up with illness and inevitably with death?

This may be simply a political choice.

The majority of human beings (86%) adhere to religious or ideological beliefs that blame mankind for their trespasses and sins, which lead to punishment or a request of indemnity based on suffering by a God or various deities.

As with so many other cases what happens in life is given by the consent of the majority, and this consent also has power over the minority.