The success of a deterrent is defined by absence, much like the success of a vaccine. Is the gov not coming because government employees are angels? No: its precisely because it will take more than a few million rounds to "over take American citizens."
Which arms are ok to protect Supreme Court justices and politicians, but not ordinary citizens? Its only a thin line between protecting ones life and protecting ones power. I guess you are right, a South American style coup just cant happen here, right? Not with the orange fascist in charge, definitely! Orange fascist is btw. Except on MSNBC.
You seriously need to lay off of the conspiracy theory sites.