I heard that the ATF is trying to eliminate non-stocking dealers from the ranks of FFL's
I've heard something like that too, more than once over the years. It's just somebody's opinion, and worth what you paid for it, maybe.
I also recall, back during the Clinton administration that there was a effort to reduce the number of dealers. Not anything official, exactly, but it was the tone of the administration, along with any other anti gun thing they could think of.
There was a huge increase in the FFL license fee, (something like from $10 to $300 per year, don't recall the exact numbers, sorry.) which had the result that a lot of the "kitchen table" dealers gave up on it. If I recall correctly, the license fee increase resulted in somewhere around 1/3 of the FFLs getting out of the business. (anyone with actual facts, feel free to correct me if I am in error)
There was also talk of a shadowy organization (the "Association" {of stocking dealers}) who were supposedly very glad to help reduce the number of "kitchen table" dealers. Might have all been BS, might have actually had some kernal of truth to it (after all, eliminating the competition is good business, right?)....
SO, ok, maybe there is some kind of unwritten agenda among SOME of the people in govt to reduce the number of dealers. Or it may just be another "crazy" conspiracy theory....after all, one can always come up with a good theory to fit the existing facts, and if it plays well to the target audience, it just never seems to die.
It may seem that the govt is out to get the little dealers, because of the attention being focused on them. Or it could just be that they get more attention because they make a higher percentage of mistakes (resulting in violations of law) either intentional or unintentional, than the (bigger) stocking dealers. And somebody is taking that fact and giving it a motive from their own imagination.
I can easily understand an FFL dealer not accepting shipment from a non FFL, as a CYA measure. At least something coming from another FFL has the presumption that the shipping FFL has complied with the laws. The way things are these days, where even honest mistakes can result in the FFL getting shut down, the small loss of business refusing non FFL shipments carries a lot less weight than the potential risk to the entire business, should a law be broken, even accidently.