I do not share the Christian view that we are all born in sin. Baha'is believe we are all born good. After we are born, by our choices and ensuing behavior we start to differentiate ourselves and as we live our lives we wind up on a continuum between good and evil.
The reason we have the propensity to sin is because we have two natures, a spiritual or higher nature and a material or lower nature, and we can choose to act according to either nature.. All imperfection comes from our physical nature, our spiritual nature is purely good.
In sum, we all have free will, so we can choose to act according to one of our two natures, our spiritual or higher nature and our material or lower nature. If we choose to act according to our lower material nature we will sin. If we choose to act according to our spiritual nature, we will become more spiritual.
“In man there are two natures; his spiritual or higher nature and his material or lower nature. In one he approaches God, in the other he lives for the world alone. Signs of both these natures are to be found in men. In his material aspect he expresses untruth, cruelty and injustice; all these are the outcome of his lower nature. The attributes of his Divine nature are shown forth in love, mercy, kindness, truth and justice, one and all being expressions of his higher nature. Every good habit, every noble quality belongs to man’s spiritual nature, whereas all his imperfections and sinful actions are born of his material nature. If a man’s Divine nature dominates his human nature, we have a saint.” Paris Talks, p. 60
THE TWO NATURES IN MAN
I do not believe that God is responsible for letting things get so out if hand. I believe that humans are responsible because they have free will to choose. Nevertheless I believe that what has happened throughout religious history was foreordained by God and it was all necessary to get up to the present age. But now that God has revealed a new religion that explains everything about God and what our purpose is on earth, people no longer have to live with those past beliefs such as original sin, satan, hell, Jesus is the only way, etc.
However, if people choose to cling to those beliefs they are fully responsible because they have free will. Moreover, these people are holding back the progress of humanity by clinging to beliefs that serve no purpose and are positively harmful to individuals and society. Moreover, these teachings are not even in the Bible but rather are man-made doctrines of the Church.