The purpose was to get the British to repeal those acts.
While the Marshall Plan was, in part, created to stop the spread of communism, the Molotov Plan was there to encourage it. Money from the Soviet Union could be used to prop up nascent communist states in a similar way that the money from the Marshall Plan was attempting to rebuild western-style democracies.
The belief generally led to bills that supported people who decided to
move out west. Thus, many people moved out west, which led directly to
Indians loosing land, Mexico loosing lands, and indirectly the
California Gold rush, and many many other things.
