Noticed that the two cops took charge and decided nobody but THEY ought to have guns, lest someone pop off a shot and draw a herd of zombies . . . and the rest went along with them.
You have a problem with that? It wasn't done for political gun control reasons, it was done to insure everyone's survival. Someone with no firearms experience popping off wild, uncontrolled shots at zombies could be a seriously bad thing
in their situation. They would only attract more zombies, plus endanger everyone else nearby with their lack of control of the firearm.
If you recall, the deputy mentioned getting the rest of the group properly trained so they could all carry.
Plus, Dale had valid concerns about the blonde. She is seriously wacked from the loss of her sister, already having tried suicide at the CDC. The deputy picked up on that, and I suspect it was the driving factor in his decision.