The thing is, the government has an almost unassailable lock on the use of force. Not that ANYONE can't use force. But the government can do it bigger, badder and better than pretty much anyone else.
With that, they can pretty much dictate what your "rights" are and are not.
It's only because the politicians can't guarantee loyalty (and their own security) from their armed forces if given such orders that prevents them from simply dictating that you have no rights and telling the public to go pound sand.
So we get the byzantine crap with our government slowly, but inexorably eroding our rights through legislation and all the "rights" are for rent (not sale, as sale implies a permanent situation) to the highest bidder of the moment.