Alma 51:5

And it came to pass that those who were desirous that Pahoran should be dethroned from the judgement seat, were called king-men, for they were desirous that the law should be altered in a manner to overthrow the free government, and to establish a king over the land.

The people who wanted Pahoran removed from the judge’s seat were called king-men. They wanted to change the law to end the free government. They wanted to make a king over the land.

Those who wanted Pahoran removed were called “king-men” because they wanted to change the law to overthrow the free government and establish a monarchy.