I don’t think it’s that, I just think the images are so horrific that people just turn away from them.
For another example I won’t watch any of the scary awful anti-smoking ads - and I’m one of the smokers they are trying to persuade.
But it just evokes a blank-you response in me, so I change the channel.
I think it is a matter of catching more flies with honey than with vinegar.
That’s a good perspective.