Review: Pirates of the Caribbean 4

I have just watched the Pirates of the Caribbean 4. It's a good firm, but also has something that I quite do not undetstand.
1. In my opinion, the director of this film, who must hate Britain or he has some relationship with Spain, because he describes the British King as a fat, ugry and greedy person, but he describes the Spanish King as a handsome, brilliant and selfless person. The British King wants to own the Fountain of Youth and let pirates to help finding, but the Spanish King lets his army to destroy the Fountain of Youth because he thinks only god can living forever. This is illogical. On the one hand, I do not think the British King like this. In fact, I think that most of British kings should be better and more brilliant than other king in Europe. If they are not, or like the film's king, why they can establish a empire as "The Sun never sets on the British Empire." In China, we say "Losers are always in the wrong; history should be written by winners." All pirates of the caribbean films describe the UK so bad. I do not know the American directors' ideas; they should all come from Britain. Why do they usually use films to say the UK bad? On the other hand, I do not think a normal king who will give up a chance for living forever.
2. Captain Jack Sparrow may do not love women. Who can give me a reason why he left the so hot and beautiful heroine in a island alone? No man will do it like him.
3. Why do the Mermaid kill people? All Mermaid should be kind-hearted, and Mermaid can speak a perfect English (no singing songs?). It break my confidence very much. They live under-sea, and can learn a very good English; I study English in the UK, but my English is worse than them. Who can give me a reason?

A very cool Pirates of the Caribbean music piano solo.