She could just move to the Christian part of Nigeria where there is no Sharia law .
Are you serious? Some parts of Nigeria don't have Sharia law?
There are some parts that practice, but there are also Sharia-free zones. People should move out of a place, either Islamic or Christian, to an area with no set of beliefs.
Maybe the person doesn't want to live in a Christian-focused area. It's not nice to say Christianity is superior to other religions.
No, she should stay in the area where there is no Sharia law. I'm just going to coldly remind her that she should've never left her country in the first place.
That is not nice to make her feel guilty for leaving. It's not right to think Christianity is a better religion than Islam. Maybe you can do more research on the country to find out more about Sharia law.