Religion came into existence so that it could bring society together. It was for the oneness. As we progressed, a few men gave different colors to it for their benefit. It kept them in power and garner followers to establish their dictatorship. Some of them ended up erasing our past and infused radical ideology.
An ordinary citizen with time got brainwashed since he is afraid and scared. Religion came as bait. It did more harm to his soul rather than doing good.
Agriculture and domestication had its impact on making us less animal but, religion and the authoritarian leaders and preachers made it lethal by spreading hatred and venom against each other.
Colonial Cousins track has said it all in their 5 mins soundtrack.