He didn't get arrested for criticizing Obama. He got arrested for being a felon in posession of firearms. He came to the attention of the authorities because a neighbor said he was acting crazy and had "machine gun style" weapons. IMHO the dude brought it on himself. If you're gonna try and be a felon prepper with guns you sure as hell better keep it on the down low.
If this latest (2016) assault weapon (semi auto) ban passes... I will simply install hydraulically actuated rotating bolts, and jimmy slap triggers. They can't regulate what they don't understand.