"...a growing sense that increasingly few Americans are benefiting from global goodwill and development"
That "growing sense" is not growing organically, it's being energetically fertilized. The problem isn't that most Americans aren't benefiting from global goodwill and development, it's that they aren't benefiting from domestic development. And the minority who are benefiting disproportionately from domestic economic growth are expending significant resources to convince everybody else that the problem lies with the rest of the world.
That "growing sense" is not growing organically, it's being energetically fertilized. The problem isn't that most Americans aren't benefiting from global goodwill and development, it's that they aren't benefiting from domestic development. And the minority who are benefiting disproportionately from domestic economic growth are expending significant resources to convince everybody else that the problem lies with the rest of the world.