Man, just leave those christian women alone. Seriously. Personally, I wouldn't bother. You could present facts all day but it wouldn't make a difference, especially if you're dealing with black christians.
People have to find their own path, so if a chick really feels that stuff is spiritually empowering, then more power to her. Just shake the dust off your feet (to use an expression they like to utter themselves) and keep it moving. Who am I to get in their way? I just would never deal with them on a romantic level and have no interest in trying to persuade them of anything and pull the rug from underneath their feet, neither do I want to hear their shyt - which I'm already aware considering I was raised as one - and I make that very clear. Don't waste each other's time.
Plenty of good, beautiful non christian/muslim women out there, bruh.