It’s debated that it’s better to let an unfortunate scenario in which multiple people die play out - allowing yourself to stay out of the picture and not be responsible - than to take action to minimize the damage, and by doing so become part of the picture and partly responsible for the damage that does occur.

"It's debated", yes. Most things are debated. Looking at the trolley problem, I don't really have any respect for anyone who thinks that a strict deontological interpretation is worth murdering four extra people.

Inaction isn't innocence, it's a choice like any other.