GTTM: I see. That said, it appears you are both on the extreme ends of the spectrum. She is gung-ho on defending her faith, while you are equally polarized against it.
If you are willing to put in the work, you can find common ground. Though it will realistically mean making concessions and compromise especially with children involved. There's a book by Dale McGowan see image below I've been reading that addresses your situation to an extent:
There's a sample on Amazon. You could read it and see if it might be of help?