Unions destroy companies and hurt workers. Unless, of course, you ask a union hack, quoted in the same post.
Also, see, e.g., Los Angeles being required by union rules to pay teachers millions of dollars not to teach while disciplinary appeals are exhausted. Many of the teachers are accused of abuse, insubordination, etc. One of the teachers has been sucking education dollars while not teaching for seven years. When your school district comes hat in hand saying it doesn’t have enough money to educate your kids, recommend they cut this stuff out first.