What struck me about your initial position is that we've both been in a similar boat around the same age. However, once you actually wrote out what you experienced and went through I realized our situations were not even remotely the same. In my scenario, my mental health suffered and why I feel looking back I shouldn't have stayed as long as I did. What I found to be an oxymoron though was your claim that pushing through your misery is somehow supposed to teacher greater life lessons that help with adult disappointment. That is where I took my pause, and you're right my comment was an attack and even though I don't mean it maliciously, I can understand why it might hurt your feelings. I'm sorry for that, I am, what I'm not sorry for is calling out that your situation---as you presented it---should never be okay for anyone to sit on the sidelines and ignore as if it's okay.
In life we stress to our youth that you don't have to be the person committing the crime or being the bully to be at fault for standing on the sidelines and doing nothing about it. In adulthood, we actually criminalize some behaviors simply because a person willingly stood to the side as an accomplice to criminal activity. In the situation, as you presented it, I do see that correlation and I won't apologize for it.