I think some gun owners (Fudds) have simply adopted the mentality of the general public, fed by the antis. For a picture of how it should be, check out things in Switzerland:
http://en.wikipedia.org/wiki/Image:Caroline-Migros-p1000507.jpg
There are no Zumbos in Switzerland, apparently. Think that could ever happen here? A large swath of the public would need to be educated as to what constitutional gun ownership is all about, i.e. it's not hunting. They have to be taught that it's a whole lot safer and your liberty is guaranteed with guns around than not.
Frankly, I think hunting is currently in more vulnerable to being banned than gun ownership. In any jurisdiction where politicians don't fear a voting block, it can be banned without violating the constitution. Sure, you can keep your gun, for now, but you can't hunt with it - that's not protected. I don't hunt, but I'm more committed than ever to cover the backs of hunters in the voting booth.
Any wedge between between black rifle guys and fudds can be exploited by salivating rights eliminators. So, in a way, I think this whole Zumbo thing was good, since it appears to have opened a lot of eyes, and has the potential to open a lot more, and unite gun owners in a way we don't appear to have been united before.
As angry as I was over the terrorist comment, to the degree Zumbo went on a rampage for his remaining years to reeducate hunters like him about what 2A is all about, yes, I'd forgive him.