Are the Trends already making an Impact?

In CIA article, which is admittedly an older article, the impact of global crises on the United States has already been seen with Syria in the past week. With the British Parliament and United Nations already refusing to take military action the Obama Administration has been forced to go to Congress in order to seek approval to take military action themselves. 

If this sort of instability becomes a new norm in not just the arabian peninsula, but also sub-Saharan Africa, I doubt the United States will be able to continue to make an impact through government/military intervention and remain a global super power. I would argue that there is a vacuum for nation building that could be more in-tune with the needs of the populations and not just US/Western interests.