to me like your wife may have more problems than just being a JW. Without trying to sound like a therapist, it sounds to me as though she may have some serious personality problems on top of the JW problems. However, I guess that doesn't help you much.
It doesn't sound like there is much love in your relationship. It doesn't sound like anyone, even your children are particularly happy. And, it sounds to me as though you are nearing the end of your tether in this situation. So to me the question is.....Why are you still there? I guess that is something only you can decide. As a scientist who deals in facts......it should be relatively easy for you

. Just leave the emotions and guilt(?) out of the equation. I know that this is a difficult thing to do. My very best wishes to you
My first husband was an Indian. His family came from the Punjab. I have two half Indian children, a boy and a girl. (aged 35 and 39)
Best wishes
Lin