Well I'm still in, but I think I'm in somewhat of a similar situation - I can't stand the constant JW talk. Depending on the topic being discussed I'll either ignore it entirely (sometimes I have to excuse myself to keep my sanity) or if I feel like I can say something to shut them down without it blowing back on me too much, I'll do it.
For example, the other day I was with some family and they were talking about my elderly grandfather and how he'll need to be put in a nursing home soon and someone brought up a recent WT study article (actually I think it was two in a row) about caring for the elderly and one said something like "Wasn't that such a great article!? It was so good because a lot of people just don't want to think about getting older so they don't prepare for it at all." I just said "I don't think it's that they don't want to think about it so much as it is that they've been told their entire lives that they would never get old." You shoulda seen how fast they changed the subject off the cult talk after that.