To answer the two quibbles you appended:
“Why, when Paris fell, did Hitler not demand the French fleet, as the Allies demanded and got the Kaiser’s fleet?”
The Brits didn’t give them the chance. A palliative for your ignorance:
http://library.thinkquest.org/15511/data/encyclopedia/oranbattle.htm
“Why did he not demand bases in French-controlled Syria to attack Suez?”
Because the Italians had already taken Syria, so his ally had the bases already. And in 1940, he was more concerned with the problem of putting his troops across the English Channel and taking London than putting them across the Mediterranian and seizing the Suez.
“Why did he beg Benito Mussolini not to attack Greece?”
Because he correctly held to the common opinion that Mussolini’s armed forces was a very hungry wolf with very bad teeth. As events turned out, Mussolini’s adventure in the Balkans and Greece turned into a quagmire for him. The British Army there and the Partisans were not Ethiopian or Syrian tribesmen.
Hitler had to send a considerable amount of assets to pull Il Duce’s “cannoli” out of the hornet’s nest he stuck it into.
You and Pat Buchanan, military-speaking-wise…you two are like THIS!
You need to do quite a bit more historical research before posing questions that even a rank layman like myself can answer off the top of my head.
