Sorry, I’m actually with the ATF on this one, until such time as the 4473 form is changed to exclude marijuana. That’s a whole different argument, and I might be opposed to that exclusion, since (by experience) I know full well Kind Bud can alter your perception. You need best-perception to handle firearms.
I'm pretty sure Schlitz can alter your perception as well.
I think the form has enough flexibility. The question, IIRC, is "Are you an *unlawful* user of or addicted to...", which already has by its structure an allowance for lawful use of marijuana. At least, that's the most recent version I can recall. God knows, they get perverse pleasure out of revising that form.
ATF is simply remaining true to form, making up new ways to screw with law-abiding Americans.
I don´t recall the Constitution saying all that.
Lots of things alter perception. OTC cold meds. Driving for 10 hours straight. A couple of Bel Havens and a bowl of XXXhot green chile. Either a person has the judgment to leave their guns parked and in neutral when they're not thinking clearly or they don't. How do you legislate for and regulate that?
And when it comes to self defense should you be required to be perfectly sober and your reflexes in top form? Such as "no shooting under the hyperglycemic effects of too many donuts?"