Do you know that every country in the world that doesn't have unions is a 3rd world country? Go live in one of those and see how you like it as a working class person.
I've been to Iraq, Kuwait, Thailand, Philippines, Afghanistan, South Africa, Spain, Germany, Singapore, Okinawa, Mexico, Guam, Australia, Indonesia, S Korea, and I could go on and on. I've seen people live through the most nasty squalor you could ever imagine. I've lived in the most nasty squalor you could ever imagine. I've also seen people prosper in the most negative of conditions. You can certainly thank unions for making the third world much more attractive to businesses from unionized countries. In fact, globalization is irradiating poverty and hunger. I suppose we have the unions to thank for that. The only problem is that I would prefer that we stay competitive for jobs along the way. The purpose of a union is to shield its workers from competition at everyone else's expense. It comes at the expense of the poor, it comes at the expense of the consumer, it comes at the expense of the shareholder, it comes at the expense of the business owner, it comes at the expense of competition, it comes at the expense of innovation, and it comes at the expense of those who they unnaturally force out of the market, and it comes at the expense of the taxpayer.
So as long as you can achieve high employment the demand for labor will be such that wages are high. High employment does not come from unions. Unions do more to harm employment than to promote it. So as long as you have a business friendly environment you can achieve high employment. Unions are not business friendly until a non-union competitor threatens their job, then they're friendly to only their business as they attempt to use force outside the market to shut the competitor down.