The fact is, the unions want the government to protect their ability to call "dibs" on entire sectors of labor. They're lazy. They don't want to do the hard work required to actually win the support of the people. If Joe Worker's life will be improved by joining the union, he will join the union. Humans are selfish, and they will do what improves their life. Right now, most people's lives won't be improved by joining the union, and as such, they choose not to. For the union to jump in and make them join anyway is insane.