I can understand your wifes viewpoint that yes, there are things wrong with the borg, but where else can one go and Jehovah will sort it out in the end.
However,
The thing I really am concerned about, and that might help your wife out, I consider to be very Spiritually dangerous, namely, the rejection by the "great crowd" of the Emblems of the New Covernant.
The society like to use Luke 22 to enfer that the Bread and the Wine, the New Covernant, is for Jesus Disciples to rule as Kings with him so that only they should take it, however, verse 20 says his blood is poured out for many, and it is 9 verses later, and after talking about a differant subject, that Jesus talks about ruling as Kings.
Matthew 26 and Mark 14 dont even mention the ruling as Kings bit, Jesus blood is poured out for many, for forgiveness of sins, that is the New Covernant.
If you want your sins forgiven, you have to drink Jesus blood.
This is most pointed out in John chapter 6 where Jesus says you will only get life if you eat his flesh and drink his blood, he likens it to the Manna which even the mixed company had to eat in order to survive, not just the Levite Priests.
So maybe if you can show your wife from the Bible that the Org is getting your Wife to actually reject the means for gaining Everlasting life, this might make her think.