Michigan is a big union state. I believe unions have probably had their place in our culture and have often been run by good people, used by good people to help good people.
But changing of the times often means re-considering approaches and strategies. And RTW laws don't mean getting rid of unions all together; but hard working citizens should have a choice as an individual as to whether they want to be a part of that union. They should not be strong-armed into doing so.
The Mackinac Center for Public Policy, a conservative think tank, describes the issue in a few seconds. It's short, sweet and visual - and that helps me! Perhaps it will serve you as well.