My experiences with the Unioner movement are, based on what I heard and saw. They were hard working innocent men and women, who did not want to work long hours with little pay. The Formed a union and began demanding higher pay and less hours. They were successful for a time, until the 80 years’ war with the GMG ended. At that point Republican was paying its workers extremely high wages for very little hours. With the end of the war with the GMG the demand for ships dropped drastically which forced Republican to lay off thousands of workers. Many of them moved to Freeport 2 were they revolted and formed the Unioners. They were soon after joined by another force that revolted on Planet Hamburg.
That is honestly all i know about the Unioner movement...mostly things I have heard during talks at the bar on Vogtland.