Captain - Welcome! If your wife isn't ready to know the truth....then you can give her every fact in the world and she will still find a way to dismiss it. It sounds like she is not ready. If I were you I'd quit trying to discuss doctrine with her. Dr. Hassan is right. Discussing doctrine will do nothing but invoke the cult personality which will stop at nothing to defend the organization.
My wife is exactly like yours. Raised as a witness but had no idea about the supposed 1919 selection by Christ...etc. Our wives have been taught to trust and believe in an authoritative structure in lieu of having a deep understanding of WHY they should give such implicit trust.
My wife will admit that there is a lot evidence against 607BC. But when I ask her to provide something.....ANYthing in support of 607....she just gets angry and tells me she doesn't owe me an explanation. She knows there is a problem but isn't strong enough to face the truth.
She knows the society has engaged in lies and deceit but passes it off as mere imperfection.
Somehow....someway it still HAS to be God's organization so she shuts out any other thoughts.
You've got a very tough situation on your hands. Keep in mind that if you finish your research and determine as I did....that you can not with a good conscience ever step inside a KH again......it will not go well. Eventually your wife will tell her family. The elders will want to meet with you to "encourage" you. Depending on what you tell the elders.....you could very well be on the chopping block. Even if you refuse to meet with them, your wife will lovingly "trust" them and tell them what you've told her if they start prying her for answers. What I am saying is that there is a chance that the elders or maybe even her parents may convince her that she is in "spiritual danger" living with you.
Tread carefully