Stubbornness and ignorance? I don't disagree.
Americans are not smart in their near religious attachment to guns. I don't disagree with the stubborn and ignorant characterizations. 45 days doesn't seem an unrealistic time to wait, not to me. I'd actually favor a ban on civilian owned semiautomatic rifles. But that's only me.
You won't get anywhere in policy if your plan begins, "Step 1: stop being stubborn and ignorant. Step 2:..." The polity just isn't ready for a lot of things that make sense.
Of course, a lot of things that seem like a response to tragic mass killings, as Adam Lanza, are only reflexes without much analysis behind them. The kid was nuts, and wanted to make a point before killing himself, and he did kill himself after doing in 26 others. He could have done just as much damage just as quickly with a semiautomatic pistol as with the weapon he did use. I don't think there's any good reason for a civilian to own an assault weapon, and whatever good banning them might do, it wouldn't solve the Adam Lanza issue.