They do have some similarities. The most important similarity is that each of the three religions believe that they, and only they, are correct. If you don't follow their faith, you are wrong and doomed for all eternity.
They are not really very good historical texts. They are placed against a backdrop that has some historical accuracy, but no more so that many other written works. Gone With the Wind, The Illiad and virtually anything by Shakespeare have at least as much historical accuracy, but nobody claims that they are accurate.
Unfortunately, they weren't made to be just guides on how to live a good life, they were made to tell people what to believe. Even as guides of how to live a good life, they fall far short of the mark. They are all filled with intolerance of people who are different, or have differing beliefs.
Except that the evidence that Jesus actually existed is controversial, at best.
Religion has kept people in ignorance, and still strives to do so. All religions are equally valid, or invalid, yet almost all claim to be the one and only absolute truth.
You say there is nothing wrong with religion. Are you forgetting the constant warfare, murder and bloodshed that has been done in the name of religion? And, before you say that was all done by the radicals ro the zealots, the holy books of Christianity, Judaism and Islam all have specifics about behaviour that can only be refered to as atrocities.