Along the same lines of thought as your argument...
I'll pick 3 random items... Uhhh...
How about a chainsaw, tool sets, and kitchen knives...
There are people and children injured and killed every year with any one of these three groups than the whole of firearms.
Yet how many here lock there kitchen knives up in a safe?
Or how about your chainsaws?
Or screwdrivers?
Why not they do more harm than firearms do...
Or goodness I forgot about automobiles. Do you lock your car in a safe also? Why not it is for the safety of the children...
Makes no sense does it...
Nope, your analogies make no sense.
First, the car keys should be kept unavailable to children.
Second, I'd love to see some verifiable statistics that support your claim that screwdrivers kill more children each year than firearms... I mean, seriously.