>>11353660
Hey man the paternalism even shines through in trying to imagine what those schismatic subjugationists believe.
A lot of the religion would be based around trying to fit as many people into having a slave's mind as possible. Since it's on such a mass scale there would always be problems, especially in what class of people become slaves, but instead of just taking the immediate shortcut of a patriarchy or matriarchy you could go with having a very empowered priest class that just decides who is a slave and who is free on a personal level.
When attending church service or equivalent, maybe. Have this idea of deep inside there is a persons soul and a servants soul, and a priest of one of these places can see that deep inside of someone, and it is a denial of their very being to disagree with that. As always with paternalism it is framed as being for their own good, they aren't going to be happy being free, and if they try they're just going to mess up and additionally incur the punishment of God.
Add in that whatever temples or churches would often have slaves themselves and you have some good stories around a girl accepting that she has no choice but to be a slave through a lot more methods than just pain and beatings. The shrine maidens make a strong argument in favour of giving up freedom.