In the history of Christendom we see many churches which started of as so called cults or so called heretic movements, though many years later they sometimes outgrew their original group and/or became one of the many main churches. Therefore one should be very careful by damning a group or calling ti a cult or sect, when there is not really anything what qualifies it to become called a sect or cult.
People can be irreligious, delusional or belonging to lovers of agnosticism, ignosticism, ietsism, scepticism, pantheism, atheism, strong or positive atheism, implicit atheism, and apatheism. After the rebellion of man God saw the world turning against Him but kept hoping in a good relationship with His creatures.
Not many believers may considered wise or powerful according to human standards, or may not being 'well born' or from "blue blood". In the Scriptures may be found many words also from foolish men. Many wrong actions of men are notated in the bible so that people can learn from them. Those foolish things of the world God chose in order that He might put to shame the wise, and the weak things of the world God chose in order that He might put to shame the strong, and the insignificant of the world.
Since the 19th century the people who very suspicious because they did not see historical evidence could find one city after another, one civilization after another, one culture after another being found and restored to their proper places in ancient history by the studies of archaeologists and Bible scholars like Botta, Layard, Wellhausen, Winckler, Taylor, Archer a.o..
To come to a faith life of truth we will need a solid foundation. to explore the truth one is best to use a trustworthy book. It may look strange but there is a Book of books, containing 66 books by 40 authors which is literally of extraterrestrial origin.