Cuba is a major tourist destination for many European travelers. The US is seen as wrong in this by most if not all 'western' nations

The US only embargoes Cuba because they wouldn't provide any significant economic gain to the US economy (i.e. they have no resources American corporations can't take from other places). They would not help the huge trade imbalance, and they were an enemy during the cold war. Hell look to China and see how economics is more important than ideology for American business.

Simple math: 1.2 billion potential customers is far more than 11.1 million