i will never speak of anything of a religious nature ever again
hey, Oompa!
Actually, that may be a good idea. Once you feel like you are under attack, there is no negotiating. Give your wife a year or two off from any kind of mention of religious stuff. Work on yourself, get yourself right in your own head, and work on your marriage. It cant really be done properly, I know, but there is still a lot that can be done, even with a pink elephant between you.
I can honestly say in my case, that the scripture "won without a word" applied. Except I won her away from the cult, rather than into it :)
I said it before, logic and reason wont get through. I've always believed in the idea "give a man enough rope to hang himself, and he will." not a nice analogy, but the point is, give your wife the space to see it for herself and she will see it.
Witnesses, as you know, are immune to pressure or persecution - it actually makes them stronger. If she feels 'attacked' by you and your apostate information, it will make her resistance stronger.
Disclaimer : I don't know you at all, so my comments are based on many, many assumptions. Please forgive me if I've gotten some key things wrong, and bear in mind this is only my two-cents worth.
Still, best of luck, and don't give up!