Right so summarizing: any profile currently capable of snapping a neck are given class 1 lifting strength as that's the amount of force needed to break the cervical vertebrae. Now this is accurate to some extent but it ignores some large factors in play when it comes to snapping necks.
First off, it is possible to break a person's neck with regular human strength, at least theoretically. The problem is this requires A: control over the body to stop it from following the motion of the neck and B: a long extended application of force in a twisting pulling motion using the neck as a lever.
Now the reason I noted theoretically is that no one does it, from the information I've looked through there isn't a real world example. Now the reason behind this is simple, you will never accidentally accomplish this feat, it requires a sustained and intentional effort. And because strangulation is a far simpler means of killing someone in that position. However, I did make a
calculatio that was accepted demonstrating that a peak human can cause cervical fracture even using a relatively weaker neck crank.
In comparison, quite a few neck snaps as they are displayed in movies aren't physically possible based on the actual physics of breaking a neck. The problem Hollywood ignores is the fact were you to try to snap a neck without first restraining the body in some way, the body would follow along with it, meaning at best you might strain the neck. Some neck breaks would actually work, as the characters in position for a rear naked choke, so they have control over the body (meaning their upper torso won't turn with their neck). However, it normally it lacks leverage for a severe neck crank, so being able to break a neck from that position is pretty superhuman.
The problem is the fact we give Class 1 lifting strength based on only this singular feat, when outside of neck-snapping many characters never display similar levels of strength.
Thus I propose we stop using neck-snapping as a justification for lifting strength by itself as it is often inconsistent with characters' normal showings.This way we can gauge their lifting strength on their more consistent showings