Why did the common masses begin to oppose the Church?

The common masses began to oppose the Church due to its corrupt practices and abuses. As the Popes and clergymen became more ambitious and led luxurious lives, they engaged in practices like Simony (selling church offices) and Pluralism (holding multiple church positions). Clergymen acted like feudal lords, exploiting the people. The Pope also demanded Annates (payment of a clergyman's first year's income) and sold indulgences, absolutions, and dispensations to promise salvation in exchange for money. Furthermore, the clergymen often broke their vows of celibacy and poverty, treating religion as a commercial business. These corrupt practices deeply angered the masses, leading to their revolt against the Church.