...... It would seem Christianity is a crapshoot, a gamble.
Peace be on you.
The original Christianity [Jesus being Prophet of God] was real.
Latter it mixed up things with idea of 'son of God' -- But 'son of God' words were not new to be used. For example:
=Throughout history, emperors and rulers ranging from the have assumed titles such titles.
='son of God' and 'son of the Lord' are occasionally found in Jewish literature, they never refer to physical descent from God.
"One offshoot of James’ ministry were the Ebionites, a sect whose name derives from the Hebrew ebionim meaning ‘the meek’ or ‘the poor’. They were the Jewish Christians, for whom Jesus took on the mantle of Messiah and not that of the ‘Son of God’. They followed the Mosaic law with great zeal, and had their own Gospel known in various contexts as the ‘Gospel of the Hebrews’, ‘Gospel of the Ebionites’ or the ‘Gospel of the Nazarenes’......................
Of all the various doctrines which evolved during the formative stages of Christianity, only those who believed in the Nazarene philosophy can justifiably be given preference. These early Christians were taught the meaning of Christianity by Jesus himself................................
Evidently St. Paul and his school do not belong there. In fact, from the time of St. Paul onwards, as Christianity spread to alien lands and pagan faiths within the Roman Empire, it began to be powerfully influenced and bent by the cultures and mythologies prevalent in those lands and went further away from its nascent purity. St. Paul did his bit in influencing the deterioration of the Christian thought by introducing his own brand of mysticism. He was neither of Jewish stock nor did he have any direct contact with Jesus, except through his claimed vision. He was already, it seems, under the powerful influence of the alien cultures.
Apparently there were two options available to St. Paul, either to fight the strenuous battles against a world of superstitions, myths and legends prevalent in the lands of the Roman Empire from times immemorial or to give in to them and let Christianity change to suit their requirements and ambitions. This gave them the message that Christianity was not essentially different from their legends and myths. He found the adoption of the second option far more profitable and convenient and let Christianity change to suit the ambitions and philosophies popular in the gentile world."
Ref:
https://alislam.org/library/books/christianity_facts_to_fiction/chapter_7.html#pgfId-1006203
Holy Quran [ch4:v172] O People of the Book, exceed not the limits in your religion, and say not of Allah anything but the truth. Verily, the Messiah, Jesus, son of Mary, was only a Messenger of Allah and
a fulfilment of His word which He sent down to Mary, and a mercy from Him. So believe in Allah and His Messengers, and say not ‘
They are three.’ Desist,
it will be better for you. Verily, Allah is the only One God. Far is it from His Holiness that He should have a son. To Him belongs whatever is in the heavens and whatever is in the earth. And sufficient is Allah as a Guardian.
Thus the real Christianity was not the one of today.