Some of these threads are great to read simply for the humor aspect.
As for the op, I don't mind where my NRA member dues go... I have more concern as to my union dues and the #1 financial contributor to the DNC.
Though that is another story.
You know it is a federal law that you can get that money back from your union right? It is called the Beck objection. I can help you with a basic letter that you can fill in your info and send it to your union so they will have to refund the portion of your dues used for non essential use "AKA" political contributions.