“I’m very happy that your nachas is that these OTD’s are clean and sober but what about nachas to the Aibishter? He gave us the Torah and COMMANDED us to keep it. He warned us not to forsake it. Klal Yisroel is married to the Torah and when we forsaken it we have forsaken our bride. We have broken our bond with the Aibishter.”
I will tell you what my mother would tell you ” zei nish Gut’s farzorger”. Don’t be Hashem’s worrier! Everything you say is true and YOU are obligated to follow everything you quoted. When these children are ready to return they will take on these obligations again. As I said before it is not up to YOU to judge them. Hashem is by there side every step of their journey and Hashem is working on his relationship with them. Trust in Hashem to work it out. It is not up to you to keep score on this.