The Marshall Dillon Rule

I'm a conservative for some kind of gun control, ever since my neighbor was killed by a robber and the local pawn shop, where the weapon likely came from in my view, had a big gun sale the next day. This is from Richard Cohen:

It's a shame that Fred Thompson is too young to have played Matt
Dillon, the no-nonsense marshal of Dodge City in the long-running radio and
television series "Gunsmoke." That role on the radio went to William Conrad
(later TV's "Cannon") and on television to James Arness. But whether TV or
radio, Marshal Dillon had the same policy for cowboys when they rode into Dodge:
They had to surrender their guns.
The Marshal Dillon Rule is based on common
sense, not to mention the law of averages: The more guns you have, the greater
the chance they will be used.

Many gun owners, I believe, are responsible NRA members, but there are so many fatherless youth growing up these days, someone needs to save them from themselves. These days, our freedoms are frequently abused. The press uses its freedom to publish military secrets, immigrants proponents think anyone should come into our country, and gun advocates want everyone to have guns. When is enough too much?