The main social cause of the French Revolution was the high population density in the country. Overpopulation caused an unrelenting strain on natural resources in the country, and this led to a number of complications that eventually gave rise to the revolution.
The country was divided into three social classes with the two top classes consisting of only a few elite members of the society while the rest of the population was left out. The third estate, or the lowest of the classes did not enjoy certain privileges and had to shoulder heavy feudal dues which is why they decided to pursue change. Poverty also played an important role in fueling the French Revolution.