What is one primary reason collective action often leads to class conflict in a society?

One primary reason collective action often leads to class conflict in a society is that different social classes have opposing interests and goals. When people from the lower class come together to demand better wages or working conditions, it can create tension with the upper class, who may want to maintain their profits and power. For example, if factory workers organize a strike to demand higher pay, the factory owners might respond with anger or even threats, seeing the workers' actions as a challenge to their authority. This clash of interests can escalate into larger conflicts, as both sides feel they are fighting for their rights and survival. Ultimately, these struggles can lead to significant social upheaval or even revolutions, as people push for change against those in power.