It’s how he handles survivors guilt. The guilt of knowing he hid in a closet and blogged while others attempted to stop the gunman.
Hogg is not victim of the shooting, he is victim of political exploitation as a minor, period.
This is the Pizza Gate dissociation psy op. The violently hated and exploited kid obtains a new pseudo-adult personality and rationalize away the rape by becoming a foot soldier for a third party cause.