Dontno
Hi and welcome to JWD.
The respose from your brother is a well known JDub tactick to force you back to the cult. It is a "when all else fails" tactick. There is no way you would ever want you kids to suffer. And, the guilt of knowing your actions would cause that pulls many parents back into a cult.
It is unethical in the extreme.
You sound like you still believe in the possibility that the Watchtower organization may be correct, and the big "A" is "just around the corner". So, I'll give you a little advise if I may.
Firstly, - YOUR CHILDREN ARE NOT GOING TO DIE AT ARMAGEDDON!! This whole teaching is a misrepresentation of the scriptures.
Secondly, - Keep in contact with us here at JDW and when ANY fears like this occure, post them and talk to some of the members here. You'll be surprised at the similarity of experiences to yours. In the late sixties, my mother difted away from the Watchtower organization and had an elder visit her and said that her actions will cost the lives of her children. She went back.
Thirdly, - Do a little research on the Watchtower organization. When you start to look at its history, infulences, how the control has changed, where they got/get their doctrines from, how much money they are worth and how much they make, what the Watchtower corperations primary goals are, who they have and do associate with, then you'll start to see them for REAL.
Fourthly, - Just stick around here are read post and join in for some fun and/or research.
I hope this helps you a little
Take care
steve.
PS. Just to reiterate it [Your children ARE NOT going to die at Armageddon!