Earlier quoted context omitted.
Say, for sake of argument, that I'm the World's Greatest Widget Engineer. I'm worth more than the average employee at my company, so I can get stuff I want by negotiating individually with my employer. On the other hand, if a union imposes some broad agreement on the company under threat of strikes, I can't convince my company to break that agreement on my own because I'm not more valuable than the entire rest of the…
> A union's interests are probably not completely aligned with mine Sure, but the company's interests are almost completely opposed to yours in most ways. It's _possible_ for you to be worse off in a union, but rare.
This really isn’t true. What you’re describing isn’t even a zero sum game it’s negative sum, where hurting the other party is among your goals in itself. The company is interested in using you to make money and for many purposes happy, satisfied employees who are growing in productivity are good. All of those are also things the employees usually want.
Are employee and company interests fully aligned? Absolutely not, but if your employer’s interests are almost completely opposed to yours get out.