I think my use of 'Mainly' there achieves the desired effect.
The earliest forms of religion were mainly and basically political means by another ends. Ways to triabilize people to a common cause and often against a common foe.
Faith can come about organically but religion does not. It is a tool that certain people use to sway others, good or bad to common cause. The origin stories behind organized religion matter little. They have been recycled over and over throughout the age, basically like throwing spaghetti against the wall until something sticks.
The forms of Christianity a plagiarism from mostly Judaism and Egyptian mythology and so on and so on.
If Christianity did not stick and get wide adaption it would have been followed by another Religion origin story, taking all the parts that worked while jettisoning those that did not. Cut, paste, repeat until mass adoption by the sheep.
There is a reason they call the faithful the "FLOCK".
Although I am not a Christian and not religious in the usual sense, I cannot agree with your cynical view of spirituality. It is true that *organized religions* -- i.e. churches -- at times try to maintain control over people. They also often butt heads with secular governments. However, millions (maybe even billions) of human beings derive comfort and peace and wisdom from their faiths.