Choking's sort of an interesting case for this, because it's one where someone should (ideally) also be doing it safely. Someone can enjoy it and consent to it, but not be sufficiently educated to do it without more risk than they realize. (This applies to many acts, but this one's particularly potentially-lethal.)

Porn, being a fantasy, rarely shows the prep-work required to do something properly. This is what I personally worry about when it comes to setting the wrong expectations in kids who haven't had that whole "this isn't representative of real sex" context properly set, leaving them thinking they can reproduce what's happening on-screen without realizing the background work required...

It's the same with Shibari, that's in fact a lot more dangerous than choking if not done properly. Because choking you can simply stop when you notice it's going wrong. A Shibari rope that isn't secured and suddenly slips to the neck takes time to cut.

Yet Shibari is viewed as an art form because it's much more stylish.

But people really into this kind of stuff are also very much into consent and safe practices. Is there really a wave of accidental chokings?

School shootings on the other hand... Maybe we should look at violent movies first?