Not sure where you get your info but its wrong.
2015 Aircraft Carrier Strength by Country
Wow... so the US has 20 (more than the rest of the world combined). And our most prominent potential enemies, Russian and China have one each.
Russia has three in service. Sold three others to China.
Yeah. Ok. 20 to 6 (assuming that they'd cooperate, and that their ACs are worth a shit). Can you dig up any stats that show anything other than the fact that America is insanely overcompensating in terms of military power?