You're jumping into the middle of a longer discussion. Obviously in context the "miscomparing" was in response to Turtle, who compared having a fire extinguisher versus a gun in a dang church. It's apples and dump trucks comparison - they are NOTHING alike. Not in the risk of the event they protect against or the risk of the protection itself.
And I don't really care all that much about your gun carrying history in this context. Obviously if you've been doing it for 30 years, you're probably well trained, competent, responsible, etc. Not everyone is like you. As I've said, I've seen MANY accidental discharges, and it's just luck the only injury was a guy who blew off the back of his own ankle. I accept those risks hunting or shooting targets because loaded guns and a mix of expertise of those handling them are integral to the activities.
Any idiot with that can read at the first grade level can pass the exam to carry, and for all I know he's carried a gun for a week. If you allow guns into a church, that means you AND those idiots with a week of experience who might show up still drunk from the night before, or are whack jobs, etc. How am I supposed to tell him from you? If I know you, and I'm sitting next to you in church or anywhere else there's probably little worry. But that tells me nothing about some stranger who comes in who I've never met. There's no good reason to trust that a random stranger knows what he's doing, or that his wife's gun in her purse can't be pulled out by her kids while she's taking communion.
The point is there is no reason for someone worshipping to spend one SECOND worrying about that to prevent something about 15 times less likely than getting struck by lightning, 0.0000001% or so. If I thought I needed protection every day from events of that likelihood, I'd wear a helmet into the dang shower, and nearly all the rest of the time not sitting at my desk. Instead I just wear one while biking on the road....
