Unless you're the one paying the $25 an hour, I don't understand your position. Why do you care if someone is being paid that much? Unions in Australia (and America) brought about better, safer working conditions, increase wages which then promotes a higher standard of living. The more money people have, the more they can spend so it promotes a strong economy.
These massive companies would love to have American's and Australian's working in the same shit conditions as they do in China. They work in unsafe conditions for long hours for shit money at a massive cost to their health. You know why this shit happens there? Because they can't form a union so it's each individual against the company and you cannot bargain for a better workplace in that scenario.
Anti-union talk is just bullshit propaganda being spread by the big companies because they would love to have American's and Australian's working in the exact same shit conditions for shit money as they do in other places across the globe.
People need to stand strong next to their fellow worker and not the company who will fuck you whenever possible. Unions are still massive in Australia but not so much American which is a real shame. Your country is being raped by these companies, not by the guy being paid $25 an hour.