So would you feel better if the Chinese and Russians had a combined total of 20 + Nimitz sized AC carriers and we had none?
Seriously: Yes. In about 15 years, that is. When we field autonomous drone swarms capable of taking out absolutely any land- or sea-based unit.
No, but I also think they are slow-moving targets against a sophisticated enemy in wartime. That being said, carriers also enable the wielding of enormous power over areas in non-wartimes, and are necessary. During wartime, however, I think a few consecutive waves of cruise missiles (say, 5 waves of 5 missiles each, in 1-2 minute waves) could sink any carrier. This does not even consider torpedoes and other threats that would be used in wartime. The same applies to the stealth bomber.