Why is religion criticsm importaint

Historical records of criticism of religion goes back to at least 5th century BCE in ancient Greece, with Diagoras "the Atheist" of Melos. In ancient Rome, an early known example is Lucretius' De Rerum Natura from the 1st century BCE.

Every exclusive religion on Earth (as well as every exclusive world view) that promotes exclusive truth-claims necessarily denigrates the truth-claims of other religions.[2] Thus some criticisms of religion become criticisms of one or more aspects of a specific religious tradition.[citation needed]

It is important because not many religions accept each other. They think their beliefs are better so they criticise other religions. Also, it would hurt their culture.