And the union exemptions don't stop with their tax exempt status. Union violence is "protected" if it is done in the furtherance of "legitimate" labor goals. So, if union thugs want to target a particular Wal-Mart store and picket in an attempt to organize its workforce, they can place nails under the tires of all existing Wal-Mart employee and management car tires without breaking the law. If the nail should cause a flat later...so be it. If the nail should cause a blow-out at highway speed, too bad, so sad.
I know this from personal experience. Thanks to the brothers of the International Brotherhood of Teamsters, Local 671, I had to replace a tire, the right front end suspension parts, and the right front fender on my 6 month old car.