I think Benson is just trolling for violent threats.
If that is the case, what do you suppose might be the benefit if he gets what he is asking for? Are they looking to reinforce their own beliefs (and those of their political masters)? I wonder what conclusion might they draw if/when they do not receive said threats?
Do you suppose this guy may be trolling as a way to bring “favorable” attention to himself to get an Asst. SecDef position in the 2nd Obama Administration he likely hopes for?