The 2nd amendment talks of the right to bear arms; I don't see it addressing issues like hoarding guns.
Texas and California apparently require sellers to report some sales; to combat gun-running to Mexico.
Hoarding? How about collecting? Or is that a "hoard"? If I got a chance to pick up SKS rifles for 99 bucks each again I'd jump on it (even the Chinese ones), if I could buy Russian AKs or East German ones for $250 each, I'd run up the credit card. Somewhere down the line they'd be trading stock, or I could sell them on consignment and double my money or better, and leave lots of meat on the bone for the shopowner.
I read news stories all the time where some guy had "an arsenal". I won't say how many firearms I own, but it isn't uncommon for a home out here to have: at least one .22 rifle. At least one bolt action rifle in 6.5mm or larger caliber. A .22 handgun. At least one larger caliber handgun, be it .380, 9mm, .38 caliber, .357 magnum, .40 cal, .45 cal, or .44 magnum (or larger). At least one shotgun. If you have 'his and hers' firearms, which is not uncommon, you already have 10 firearms.
Frankly, those are the basics in this neck of the woods, and far from what so many urban news outlets consider to be an "arsenal", even though they define a half dozen firearms and a few hundred rounds of ammo as such as if someone was going to go out one weekend and overthrow the government with them.
Out here, it isn't uncommon for a gun owner of any means to have two, three, or four
dozen firearms, and serious collectors might have a couple hundred or more. Those guns aren't running around committing mayhem.
As the law stands, if you buy two handguns from the same dealer and take delivery of them on the same day, you are required to be flagged by the dealer and reported to the BATFE. Lovely. So the pair of pistols I bought with sequential serial numbers were picked up on different sides of a weekend, just to save my dealer paperwork. Silly rule.
The bottom line is that people who are law abiding aren't the problem, but they are the only ones these laws make life difficult for. Remember, too, it was the BATFE who
told the dealer who sold some of the Fast and Furious firearms to let the transaction go through, even though the (known) straw buyer was buying rifles and pistols that would be untraceable and out of reach in no time, a dozen at a time. Those arms ended up in Mexico or in Cartel hands, and the Government knew d@mned well they were going there.