If MGM can blame the guns, or even just the stocks, it takes the heat off their liability exposure.
All that's left, in the vacuum created by an unsure narrative and little data that would indicate a motive or some irrational or medical event, is the emotional need for some to find something to blame.
Thus, they blame the firearm and not the person wielding it.
Consider: 80,000,000 gun owners hurt no one, and of those few who did, it was often in defense of self, home, and family or even others who were being attacked.
To try to pressure Law-abiding Americans to divest themselves of rights and property because someone else misused their guns is like demanding Hollywood people ditch their limos because a muslim somewhere ran over a crowd.
We both know that isn't happening, either one. So, Hollywood denizens, when the virtue signalling is done, sit down, have a decaf, and save your breath for your next production so we can boycott it. Movies and television have done more damage to the moral fiber of America than all the guns combined.
How people who represent an industry which so consistently portrays and glorifies the abuse of firearms and violence in general can decry an organization which has promoted and trained people in the safe handling of guns is beyond me.