Whoopee, so does Elvis.
Elvis is a sovereign state? You can't be that dumb, so I'll chalk it up to your desire to belittle that which you don't understand.
SD
I'll give you the benefit of the doubt and say you can't be dumb enough to believe that the Vatican is a real, legitimate sovereign political state. I'll give it a test. Say a renegade band of Moslems storm Vatican City and take it over. Do the citizens of this so-called sovereign state call out their Army, Marines and Air Force to take back their nation or do the call a real sovereign state, like Italy to do it for them. I think we both know the answer to this one.
Bush has to listen to them because of internal US politics (wanting votes of all those RC sheep), not because they are in any sense a legitimate "country".
The reason I used the Elvis example is because his empire (Graceland) is based on the same religious zeal as your Vatican City and has the same legitimacy of "sovereign state". The real difference is that Graceland is based purely on greed and not a power-grab, so they haven't needed to declare itself an independent state. (Note, this does not mean that the Elvis religion is equal in truth to your RC church, but is equal in legitimacy as a real state.)