Businesses use their political contributions (almost equally given to democrats and Republicans) to buy political influence which enables them to build new factories or retail stores, risk new ventures, invest in new methods of production and new technologies. The end result of their activity is the creation of jobs -- jobs for non-union workers, jobs for union workers.
Government unions use their political contributions (over 95% goes to democrats) for one purpose only: to get as much taxpayer money as they can for themselves. They create nothing. They don’t build factories or retail stores. They don’t take risks in new business ventures. They don’t invest in new technologies. The only jobs they create result from forcing employers to accommodate rules which require more workers to do a job one worker could do.
Correction:
Government unions do create something: a small class of workers who extort ever more money from us in order to pay themselves greater pay and benefits than we receive; a class of workers who, when we say “Enough!”, close governments and schools, riot and make threats against our elected officials – all intended to thwart the will of the people, as expressed in Constitutional elections.
Or, more accurately, unions create…greedy workers. Some might call them socialists.