I didn't say things were simple. I said the US is the largest Imperialist power in the world, which is true, and suggested reevaluating your world view.
The US is not holding onto hegemonic power for "stability," nations can govern themselves just fine. The US is holding onto hegemonic power for profit.
No, it's absolutely not simple, but it is glaringly obvious that pretending the US is important on the global stage for "stability" is purely a western viewpoint that ignores the US' contributions as a supporter of terrorism around the world whenever its profits are threatened.