You can blame people for going OTD, but if they were pushed -the pushers get most of the blame.
They will certainly have to give din v’cheshbon for their actions.
BTW, do you know anyone personally who went off?
Health, yes I do. More than one. Not everyone had a hard life, but one who used to be a close freind of mine had a very hard life. We struggled through the teenage years together, both of us confused. My quest for truth kept me keeping the mitzvos, she thought the grass is greener on the other side. Do you think I respect her?
There is hope for her though. She’s realizing that life is not greener on the other side and hopefully with Hashem’s help she’ll make a comeback.