Some folks have the erroneous idea that Catholic ideas about truth are intolerant. This is a poor way of looking at things. Here’s a better way:
To believe it possible to know a universally valid truth is in no way to encourage intolerance; on the contrary, it is the essential condition for sincere and authentic dialogue between persons. On this basis alone is it possible to overcome divisions and to journey together towards full truth, walking those paths known only to the Spirit of the Risen Lord. [Fides et Ratio §92]
Unless the truth is universally valid, there is no point in dialogue between people who disagree with each other. Relativism reduces their conversation to nothing more than comparisons of favorite ice cream flavors.