Trivialization (noun)

1. The act or process of treating something as unimportant or insignificant.
2. The condition or state of being trivialized, reduced to a minor or unimportant status.

Origin:

From trivial + -ization.

Examples:

1. The trivialization of serious topics in the media has become a cause for concern.
2. The trivialization of the issue was disappointing to many.
3. Many felt that the trivialization of mental health was unacceptable.
4. The trivialization of the election by some politicians was seen as disrespectful.
5. The trivialization of the topic made the discussion less productive.