I actually believe I personally have really no more questions for you, at this time. You're working through a lot of really important, valid, relevant and good stuff.
I'll just say this...
You can not unknow something. You can't control information that you do or do not get, when you get it, how you get it, the context that you get it...
It just is... what it is...
and you cannot unknow it...
You get to decide your responsibility. Maybe it should be more, maybe it should be less. What ever you decide to own as yours, is your choice.
Just be responsible for what ever you do... what ever you did... in the past... in the now... in the future...
Own what is yours. Be responsible. Live in your own personal morals and ethics and act accordingly.