I am now completely inactive, have been to one meeting since january. I feel for you as I have two little ones myself. Since I have a husband still "in" i have to tread carefully. I am trying to give my kids balance whilst not confusing them, and at the same time hoping my husband fades too so that they dont get completely indoctrinated!
My approach is similar to yours, (even though I question the existence of God), when my 5 year old was saying at xmas - xmas is bad, are they bad guys because they have all xmas stuff all over their house. I said just because WE dont do all the xmas stuff, God allows everyone to choose how they live, so we are not better than anyone else. If he talks about bad people not getting into the paradise (little sponge brain he has, shows you how insidious the brainwashing is!) I counter with, "everyone can learn how to be nice, but if they do bad things like steal or hurt people the police put them in jail to keep others safe". I try to shift the focus off the paradise, i dont want him growing up believing its just around the corner the same way I did. Ive subtly said, its a nice STORY isnt it. But we can be happy and enjoy life NOW, for REAL.
Just wishing my husband would fade now so I can protect my kids from any more brain washing!