Europe is barely 300 years on from this sort of gawping sickness.
There are scenes in "The World At War" which I still recall (from 1973 showing) which I suspect were cut from the last repeat showing I saw (satellite channels). They wouldn't meet current sensitivity levels.
I don't care to see some of them again, other than to confirm or refute that some of it was my imagination (I wasn't even in my teens).
On the basis that I am unable to forget disturbing imagery, I am not remotely tempted to watch these things. I imagine there are "wimp if you don't" types out there. If anyone's viewing them, it's probably that.