He’s embraced a boatload of hellish philosophies and aspirations and unloaded all that on America and America’s friends.
If (hopefully when) the regime changes again, America really ought to tell the world we’re sorry, that was Obama and he had us by the nose. Trump (which is looking like the likeliest possibility now) is too nice to do that, though.
A large critical mass of the American public embraces such doctrine and votes for it. Some days I really wonder if much of the world actually cares about what Obama does or if they like him for it.