Marx is a conflict theorist. He argued that the struggle between social classes was the major cause of change in society . Much change, in fact, happens as rich people and poor people compete over scarce resources. Not all conflict theorists are Marxist. Weber is also a conflict theorist.
Conflict can occur over many other aspects of society unrelated to class.
Conflict occurs between when two people have a car accident. Conflict occurs between men and women. As a result of tension, hostility, competition, and disagreements over goals and values, change is one of the basic features in society . In general, change occurs because of inequality and the battle over scarce resources . One should realize that conflict is not intrinsically bad .