Unions are great when they are fighting for worker's rights by demanding things like businesses sharing their profits with the workers who make it for them, more vacation time, required investments in safety, and protecting workers from getting fired for having the wrong skin color.

But when they get into the business of slowing down technology adoption to protect workers, that's when they get into the territory of giving unions a bad name. Getting together to lobby the government to make systemic changes to help displaced workers would be great, but it seems in this case they are trying to get government to just ban technology that replaces them.