Dave, I understand exactly how you feel about your kids. My W tells me the same thing about my S5. She says he will be fine, a lot of others kids have divorced parents and they are fine. That is her way of justifying things. I say it is a bull sh*t statement, but that is her thoughts not mine. I can argue my point to her all I want, but it is not going to change anything and it will only push her farther away, so why focus on it. We all know how difficult a D is on our children, but arguing about it with our spouses is not going to change it. So don't focus on it. It is a cheeseless tunnel.
Another thought. Talking to your wife about the comments your S4 makes to you are not helping you DB your marriage. It comes across as if you are trying to guilt your wife. Don't do it. I am 100% sure that he is already making similar comments to her and your telling her about them is not anything she is not already hearing from him. Do not use him or his comments as pawns in your quest to win back you wife. They will only backfire. Answer yourself this. Does you wife love your kids? Would she do anything to intentionally harm them? Would she sacrifice her own well being to protect them? She knows they are suffering and she wants to protect them as much as you do. Do not allow her seemingly callous comments about them being unaffected by what is happening distract you from your goals.
“Do you want to be RIGHT or want to be LOVED” “You have to have a life to share a life with someone” “When you stop resisting, you start learning”