That's the problem. All religions are dogmatic. The stories in every religion are not facts, they are just beliefs. Beliefs are not facts. Even Muslims do not agree among themselves - which stories are to be believed.
That's why. in the teachings of Islam, Christianity and Judaism members of different sects argued with one another over the correctness of their respective interpretations. In other words different sects have different opinions.
Dawud :: Book 40 : Hadith 4579
Narrated AbuHurayrah:
Muhammad said: The Jews were split up into seventy-one or seventy-two sects; and the Christians were split up into seventy one or seventy-two sects; and my community will be split up into seventy-three sects.
So, there is only one sect out of many sects of Muslims, Christians or Jews accepted by Allah.
Which one a true faith and pure religion and claimed by Allah.