Yussel, you are right, not all kids who go off the derech are in a life or death situation (well physical death that is). There are many people who left the fold and have lived long lives. Maybe it’s important to distinguish between the two, since kids-at-risk are usually further down the spiral descent than just giving up on religion. So for this moment I will just comment about going off the derech.
Next, I don’t know if you were able to focus on where I was going, maybe it wasn’t clear or maybe you are stuck on this kid issue, but “the big picture” really deals with the events of the family and/or community that interacted with this teen that brought him to this point. Why would all of a sudden a child who goes to a Jewish school, raised by religious parents, sheltered in an environment that guides how we eat, how we dress, what we should say, how we act (and so on) turn around when he is a teen and say, no thanks, I don’t feel like being religious anymore? I have yet to meet a teen or young adult who was born in a religious stable family that decided it was too much of a burden. It is only after investigating and looking into the “big picture” do we see that there were many outside factors that contribute to it. Most of the time it is some sort of rejection for not living up to the expectations that were set for him. These rejections might have come from his/her parents, their teachers and Rabbi’s or the social circle they were raised in.
If it were just motivation that he was lacking then how will telling him to “get over yourself” ever accomplish bringing him back to the fold? We as part of Klal Yisroel are responsible for each other and are just as much responsible to him/her in showing the beauty that lies within Yiddishkeit.
I think we agree that you don’t exclude any other child in a family (which I stated very clearly in my post)for the needs of just one. However, as a parent, I know that you sometimes have to prioritize your attention to the child that needs it the most. If you are unable to be there physically or mentally for everyone, then you get help. Focusing on a child that is going off the Derech doesn’t mean that you have to miss your sons chumash play, or daughters doctor appointment or even doing bed time with your kids. It can be a challenge, it can be hard and there will be times you question yourself if you can do it, but it can be done.
Because of the wording directed towards me in your post, there is something that has touched a sore point with you. I don’t know what that may be. But, what I do know is that these kids don’t just happen to loose faith. I have yet to meet a kid or person born in a religious family who has left religion behind because it was too hard. If a parent feels like they are being blackmailed into submission in order to control the behaviors of a child then they have to look back into what events put them to where they are now. Kids (and teens) by nature look up to their parents as the most important people in the world. It is through the mitzvah of k’vod av v’ aim that we are able to comprehend that there is a Rebona Shel Olem. Something happened that broke the connection between the parent and child and it wasn’t the child who did the damage. This isn’t a belief, this is a fact based on statistics on Jewish kids who went off the derech. A child who finds the need to “hurt” their parents by acting out is merely reacting to something that was done to them. So yes it’s not “fair” to the rest of the family to deal with this, but then again “fair” wasn’t in the equation when they were young with the dealings and actions done to them.
Last point, what is there to be done when the actions of the teen are affecting the other kids in the family. For that there is no easy answer and one must speak to a qualified Rav who is competent in such matters. However like many have mentioned there are several groups and Robbonim who deal and assist with such matters. It is not an easy call, and needs to be handled with the greatest of sensitivity. He is not a rasha and all the halachos related bein adom l’chaveroh apply.