They like the turmoil.
Explanation: This joke is a pun on the phrase “turmoil” and the concept of “turning to oil.” The humor suggests that Americans are drawn to the Middle East not just because of chaos (“turmoil”), but also because of the region’s oil resources. The wordplay combines “turmoil” with “turn-oil,” implying that Americans’ involvement in the region is linked to their interest in oil, which is a common stereotype about international politics in the Middle East.