If your niece knows you are attracted to males, and she loves you as much you love her, then I suggest that you share your story with her. She was indoctrinated into religion; brainwashed since birth. She doesn’t know of anything else. I’m sure of that. Get then while they are young and you have a soldier for life. She’s a soldier growing into a warrior. It’s up to you if you want this to stop, or at least have a chance. Maybe things are not so deeply rooted with her. Maybe they have not drilled into her head that she can’t function without god. If you share your story, and she’s receptive to it, maybe you could add this line. “Why be apart of something that was created to persist in the hated of someone that you love so much?” You could add something traumatizing such as, “When you join them, and are assimilated into their ways, everything about you, will be aimed at the conversion and/or murder of me.” I felt my heart sink a bit at that last line about you knowing she is getting on a plane. I want to hug you. Go hug someone and think of it from me.