re: How will the United States end?

I don't think the human race has evolved to a point spiritually yet that would keep us from turning on each other in competition instead of working together with each other in cooperation. We still have millions of humans on this planet who would kill their fellow human beings without one ounce of remorse. Therefore, we are not too far removed from our more primitive ancestors in that regard. Until the spiritual being that humans truly are comes to know how to override the egotistical physical creature of nature, no human system of government will last in perpetuity. The greedy, competitive, sociopathic shitballs of society will still have that incentive to treat other humans with disrespect and wield power gained with zero responsibility.