Religions have done more harm than good in the past and in the present. A considerable percentage of man’s resources and time have been wasted for them. Moral principles would have evolved anyway as they are essential for our peaceful co-existence.
People still believe in them more due to childhood indoctrination. Your religion, in all probability, is that of your parents. If you were born in an Arab country you would be a Muslim. If you were born in India you would be a Hindu. Earlier, if you were born in Europe you could be a Christian- but not any more. Among the developed world only America still sticks with the foolish Christian beliefs.
Most of the religious texts seem to be the creations of humans. The Bible is just an ancient fiction. So are the holy books of other religions. There is no scientific evidence to test what is written in them. That could be the reason why the priests of different religions dread the advance of science. All religions, without exception, discourage rational thinking and critical analysis. Each one insists on belief!
Millions of innocent people have been tortured and killed in the name of religions. Terrorism and communal conflicts are still rampant. Major religions, although they deny accepting it, have ill-treated Women. There is no reason whatsoever to believe in male superiority; but it is extolled in a few major religions like Islam-perhaps to attract men into their folds-and they seem to thrive.
Do humans require such religious texts anymore? As Richard Dawkins says, “The God of the Old Testament is arguably the most unpleasant character in all fiction: jealous and proud of it; a petty, unjust, unforgiving control-freak; a vindictive, bloodthirsty ethnic cleanser; a misogynistic, homophobic, racist, infanticidal, genocidal, filicidal, pestilential, megalomaniacal sadomasochistic, capriciously malevolent bully.” We read in the OT that it was a religious duty to exterminate conquered races completely, and to spare even their cattle and sheep was an impiety. Based on the Bible falsehood, the Inquisition courts haunted women as witches and burnt them. They tortured or killed scientists like Bruno (the martyr of science) and Galileo who spoke against the foolish Bible theories. Muslims have committed equal or more terror in the world in the name of their God, Allah.
If there was no religion, there would have been no Anglo French war, no suicide bomber, no 9/11, no Crusade, no witch-hunt, no Hindu Muslim rivalry, no Arab Israeli war, no Serb/Croat/Muslim massacre, no persecution of Jews, no gas chamber, no honor killing, no Jihadi, no terrorist, no Taliban, no Osma Bin Laden, no oppression of women, no beheading of blasphemers and no persecution in the name of religion. Millions have perished in each century due to religions alone. The danger of religious belief is that it allows the otherwise normal human beings to become mad and commit acts of terror for their deity.
A believer is like a drunken man and a non-believer is like a sober one. Religion has actually convinced believers that there's an invisible power - living in the skies - watching everything they do. He has given his directions though his prophet/son for the ordinary mortals to obey and follow. If people don’t live accordingly, the power has prepared a special place full of fire, burning and torture for them. He will send them there to suffer, get burnt, and scream forever. Still religious believers say this power is pure love. Where else will we find such stupidity? A temporary disobedience or sin deserves only a temporary reprimand. But this power gives eternal, horrendous and irrevocable punishment! Believing such bullshit, the followers lose their independence and intellectual freedom.