how was this cause received by people?
It was received well as it supports universal social welfare.The Marxist–Leninist state provides with universal healthcare, free public education and the social benefits.
Marxism–Leninism
Marxism–Leninism supports universal social welfare. The Marxist–Leninist state provides for the national welfare with universal healthcare, free public education (academic, technical and professional) and the social benefits (childcare and continuing education) necessary to increase the productivity of the workers and the socialist economy to develop a communist society. As part of the planned economy, the Marxist–Leninist state is meant to develop the proletariat's universal education (academic and technical) and their class consciousness (political education) to facilitate their contextual understanding of the historical development of communism as presented in Marx's theory of history.

what was joseph stalins main goal for the soviet union apex He introduced the first five-year plan for building a socialist economy. In place of the internationalism expressed by Lenin throughout the Revolution, it aimed to build Socialism in One Country. who was this person? He was a Georgian revolutionary and Soviet politician. how would you describe his persona? Stalin was ruthless, temperamentally cruel, and had a propensity for violence high even among the Bolsheviks. He lacked compassion. He had unwavering commitment to the survival of the Soviet Union and the international Marxist–Leninist cause. what was this cause that you just mentioned above? It  is one of the main communist ideologies.
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Marxism–Leninism [SEP] Society
It focuses upon modernisation and distancing society from the past, the bourgeoisie and the old intelligentsia. The socio-cultural changes required for establishing a communist society are realised with education and agitprop (agitation and propaganda) which reinforce communal and communist values. The modernisation of educational and cultural policies eliminates the societal atomisation, including anomie and social alienation, caused by cultural backwardness. Marxism–Leninism develops the New Soviet man, an educated and cultured citizen possessed of a proletarian class consciousness who is oriented towards the social cohesion necessary for developing a communist society as opposed to the antithetic bourgeois individualist associated with social atomisation.