They'll tell you it's not for them to say who will be saved or not and that they leave it up to Jehovah yet on the other hand, they'll say that all who've come to an accurate knowledge and haven't dedicated their lives in baptism, will perish. They also say their ministry is a never to be repeated life saving work done out of love for their fellow man so that more lives will be spared at Armageddon .
My younger sister, when she was small, used to burst out in tears at the meeting when this topic was discussed because our father studied for years but just couldn't make himself go from door to door. Consequently, they wouldn't let him get baptized so he eventually stopped coming to the meeting. My sister would come home crying to our Dad "Please come to meetings again...I don't want you to get "Stroyed" which was her word for "Destroyed". Our kind and loving father used to comfort her then look at Mom and say under his breath through clenched teeth "Why do they have to say these things in front of the Children?"
Nowadays, I like to ask JW's "why all the supposed urgency in your ministry if you don't think it's only JW's who'll be saved? Why is it like a death in the family when someone's son or daughter leaves the organization? What about churchgoing little old Mrs. Jones next door...will she die if she doesn't stop her charity work and renounce her church membership and become a JW? After all she's part of Babylon the Great...right?
Then they say..."Well we don't judge", to which I say "Oh but you do...you've labeled every other religion as false worship and as being backed by Satan and if all those who have been warned, don't "get out of her" by becoming a JW, they will go down with her at Armageddon.
This is another one of those occasions that usually ends in their eyes glazing over and pretending they don't see the logic or them denying that's what they believe.