Leeba, thanks for sharing and welcome to the CR! Even if the less strict MO do not have a lower OTD rate than charedi Jews (as people on this thread have claimed), there still may be merit to your views and advice about how to prevent people from going off.
Rabbi Lazer Brody and Rabbi Shalom Arush, in their books and lectures, have often chided parents for being too negative with their children, using a harsh or demanding approach rather than a more positive approach focused on love and setting an example with true emunah/bitachon and joy in mitzvos.
In fact, many OTD Jews who were turned off by their parents’ harsh approach have come back to Yiddishkeit with R’ Brody and R’ Arush’s encouragement. Although they are chassidic, they have never spoken a negative word about MO — that is not their way. (As an indication of their attitude, R’ Brody often features, or even performs with, MO musicians in videos on his blog.)
Rav Arush is speaking (with R’ Brody as translator) tonight in Queens, at Youn Israel of KGH — I highly recommend you check it out if you’re in NY!