Step-by-step explanation:
1 It depends on the specific cartoon and the context in which it was created. The figures could represent politicians, corporations, political parties, or other groups.
2 The action of throwing someone into a pool labeled "world markets" likely represents the forces of globalization and the impact it has on the economy and workers. The person being thrown in could symbolize U.S. labor or the working class.
3 The sign "sink or swim" could indicate the tough competition that U.S. labor faces in the global market, and that it's sink or swim for them in terms of survival.
4 The attitude of the cartoonist is also dependent on the specific cartoon and context, but it may show criticism or concern towards the treatment of U.S. labor and its impact on the economy.
5 The assumption about the relationship between U.S. labor and world markets is that they are competing with each other, and that the global market may not be favorable to U.S. labor. The validity of this assumption may vary and depend on various factors and perspectives.