It is lukewarm "members" of the NRA who only take The American Rifleman for the technical articles and the pictures of pretty guns.
Others are ex-members who were only members for a year or two 10, 15 or 20 years ago. They say the NRA is encouraging people to take the law into their own hands. When I ask "you would not use a firearm to protect your family?" They usually say well yes, BUT I don't go looking for trouble. (duh)
Many of these same people use the excuse "the NRA is always asking for money" for not being a member. Pro gun lawsuits and lobbing do not take money, lots of it?
I don't call them freeloaders, but that is exactly who they are. They want someone else to protect their rights, but don't want their name on a list (NRA member), never contact their elected officials, never write a letter to the editor, never talk to a business owner who display a sign "No Guns Allowed", never recruited a new member. They want someone else to carry the load for them. I am sure you have heard all these reasons (excuses) and more.
It takes time to reason with these people. Some times I win, sometimes I lose, but I try to never burn bridges. Plant a seed and perhaps someday they (ex-members, members or nonmembers) will see the light.
I know who you mean. They are a bit rarer in Arizona, but we call them “golfers with guns”. The people that I am talking about also tend to want to be sure that the “wrong” people do not have guns.