Your senility comment- that because Zumbo's 'over 60', he must be senile- was utter crap. And so's the rest of your post.
The idea that Zumbo was taught a lesson by the RKBA crew is nonsense. Zumbo had some big sponsorships, and the faceless suits at those companies threw Zumbo to the wolves to prevent any risk, to their bottom line. They would do exactly the same to any segment of the firearms fraternity if conditions were right.
What is the "firearms fraternity"?
Perhaps. They are learning how large and passionate a group RKBA-ers are.