It just means that if they come across someone like this is their lives it's not to be judged or hated upon
Except none of the material seems to be about doing this? It seems instead to be about recruiting children to a particular belief system.
My child is atheist but friends with a lot of Muslim children and a few Christian children - reflective of the local population. His school is excellent at preventing bullying and promoting community cohesion.
With so many competing beliefs existing under one roof, it doesn't achieve that cohesion by converting all the children to one of the belief systems. You can teach children kindness and tolerance of difference/different beliefs, along with the fact some families have 2 mummies / 2 daddies. It should not be the role of a school to teach the children to believe in a specific religion, gendered souls or gender stereotypes.