Final answer:
The key point of division within the Politburo was the disagreement between Stalin and other members over industrialization, forcible grain seizures, and workers' rations. This split had devastating consequences on the Soviet economy and society, leading to famine, unrest, and increased repression under Stalin's rule.
Step-by-step explanation:
The key point of division within the Politburo was the disagreement between Stalin, who wanted to maintain the pace of industrialization, and the other members who advocated for stopping forcible grain seizures and increasing workers' rations.
Some members advocated for stopping forcible grain seizures and increasing workers' rations because they recognized that the forced collectivization of agriculture was causing widespread famine and resistance among the peasants.
This split affected the Soviet economy and society by worsening the famine and unrest caused by collectivization, leading to millions of deaths. It also deepened Stalin's paranoia and reinforced his authoritarian control over the Soviet Union.
Kirov's stance, which aligned with the other members of the Politburo, further increased the tension and division within the party.
The consequences of this division within the party were the continuation of forced collectivization, increased repression, and further consolidation of Stalin's power.