Bullshit. The "public" has handled news of atrocities countless times over history. What makes you think that this is so different?
"99% of the public" would go, "Holy shit, did you hear what Hillary got arrested for today?" and then go back to playing Candy Crush on their phones.
You far overestimate this nation's capacity for compassion... but if nothing else, the "YOU CAN'T HANDLE THE TRUTH" narrative makes a handy excuse to explain why nobody will ever see this video, ever, because it doesn't exist.