Keep in mind there are those who want us eternally both dependent and involved in the Middle East. Until those interests are removed from our government we are always going to be "dependent" upon Middle East oil. If we weren't dependent upon their oil, the Middle East would not be an important area of foreign policy.
Whatever those influences may be, they don't force an american or brit to lay out $5,000,000 to the islamic sheikdom of Mohammed bin Rashid Al Maktoum for a villa in Dubai. It's a choice some people make. Some westerners don't mind if their american money ends up financing huge mosques in Holland, or terrorism in general.