In addition to this, the US does all of Europe's dirt elsewhere in the world. For example, oil gets stolen from Syria and sent to Europe. This means European capitalists don't have to compete with American capitalists, who source their oil from Canada and Latin America. They agree to divvy up resources so Europe and the US don't come into conflict later.

The war in Ukraine is an example of the opposite happening. NATO capitalists are in conflict with capitalists in former Soviet nations. They both want to extract resources from Ukraine, but NATO capitalists want Russian capitalists to be subservient.

As said above, the Marshall Plan made Europe militarily dependent on the US. In exchange, the US does the actual armed conflict. Europe gets to benefit from imperialism, yet sits below American capital.