BATF? Really? I’ve always thought that should be the name of a convenience store.
Why not just support the Tenth Amendment and let the chips fall?
Plus it'd be rather silly to regulate tobacco and alcohol and not regulate marijuana and there's too many anti-smoking fanatics on here to even begin to rationally discuss that idea.
And ultimately, because of the derivative processes that can be applied to marijuana cultivation that drastically increases THC content, at least applying the same level of regulation you'd put on home brewing or micro breweries would reduce that production (you don't see a whole lot of people distilling beer.)
Plus, as much as the anti-smoking fanatics love to claim massive smoking rates among the youth, regulation is effective at reducing consumption by the young.
And as I noted, distribution and sales would be state regulated, putting it back in the 10th as you desire.