I've seen several posts by certain people who say unions have outlived their usefulness and are no longer needed.
If you feel this way you're in for a rude awakening some time in the future. Once the unions are gone you'll see. There have been many workers that are non-union that have ridden on the coattails of unions.
Many times the benchmark for workers for wages and benefits have been union workers, especially the UAW. There is also what is called the prevailing wage. Many wages in a community are based on benchmarks and prevailing wages.
Just wait. When all of this is gone we'll all be living in cardboard boxes like they do in Mexico. If you're a professional person it can happen to you, too.
This whole deal of illegal immigration, outsourcing - offshoring, H-1B abuses, and other things will serve to lower everyones wages, even among the professions. It's just a matter of time. In fact, it's happening as I write this. Some bigshot somewhere is hatching a plan to offshore your job or reduce your wages. You can take that one to the bank!
When this happens who will stand up for you? The government? Hah, Hah. You'll wish you had a union.