Unions have outlived their usefulness, too much corruption (much like every other facet of society). They make lazy slobs even lazier (is that a word?), and should be outlawed, every man for himself!
I don't like my job much, but I ALWAYS have the option to look elsewhere, no one's forcing me to stay, and I certainly don't want union support.
My dad was a truck driver in a union. Every few years, they'd go on strike, even though he didn't want to. He'd end up losing a few weeks pay, just to get 20 cents more an hour! He used to tell me it would take years to earn back what he'd lost by walking out, and he was more or less right. Oh, and he would get paid by the union to walk the picket line, something like 10 bucks a day (don't spend it all in one place!).
Those who want and support unions are generally slackers, IMHO.