Final answer:
After World War 2, many in Europe supported communism due to economic instability and the appeal of socialist rhetoric about economic equality. Support also came from Stalin-backed communist governments formed in Eastern Europe, while failures of capitalist systems during interwar periods contributed to the ideology's attractiveness.
Step-by-step explanation:
Many people across Europe supported communism immediately after World War 2 because the continent was suffering from tremendous economic instability, with rampant unemployment, inflation, and food shortages. The promise of economic aid and stability from more powerful communist nations, as well as compelling communist rhetoric advocating for equal sharing of farmland and cooperative ownership of factories, appealed to the landless peasants and impoverished city workers. Moreover, the wartime experiences and the Soviet Union's survival and attempts at exporting the revolution intensified the support for communist ideas.
Communist parties in countries such as Czechoslovakia, Italy, Finland, and France saw significant support due to the socioeconomic conditions. In the east, Stalin's backing led to communist governments being established in nations like Poland, Czechoslovakia, Hungary, and Romania. Social upheavals and the failure of capitalist systems during the interwar period also contributed to the attractiveness of communism, with the ideology promising economic equality and appealing more to those feeling abandoned by capitalism.