Look, if you believe, as these guys do, that somehow, your gun just isn’t safe enough to carry around with ammo loaded in the chamber and the appropriate safeties engaged, why not take the next logical step and walk around with an unloaded, empty gun?
After all, if you gun is unsafe with a round in the chamber, isn’t even MORE safe without any ammo in it whatsoever? And you’re going to have to use two hands to chamber a round into the gun if you carry in Condition Three, why not use two hands to load and chamber a round when carrying in Condition Four?
Do it. Do it for the children.
Or just carry your guns the way they’re supposed to be carried, with a round in the chamber and safeties engaged.