And yet in some countries the union is able to work together with the employer so that everyone wins. (By wins I mean the employer makes money and stays in business and the employees earn a living wage.) This of course requires mature sensible people who see beyond the next financial quarter or the next paycheck.
For private sector unions this is true, because employers have a vested interest in the success (or at least survival) of their employer. In the public sector, prison guards don't have a vested interest in reducing the prison population (quite the opposite), police officers don't have a vested interest in keeping themselves accountable for use of force (quite the opposite), and so forth.
