This is true. But, it's the same for any business that deals with seasonal, panic, emergency, etc. purchasing situations. We, as firearms enthusiasts, can support these businesses by shooting the shit out of all our ammo and buying more. (I'm kidding. sort of.) haha
I can't think of too many businesses that are dealing with the level of panic buying except ammo and toilet paper.
I know I'm not shooting the shit out of my 9mm ammo. Actually I went and bought a second .22 to shoot so wife and I could shoot together and I did not shoot my 9mm. I seem to be able to keep plenty of 22 ammo and shoot it a lot. Don't figure I will need 22 for defensive purposes, but if I start shooting 9mm again as I used to, it will take a good bit of time before I could shoot it all up.
And he will still have to deal with the downturn when it comes. Laying off people is no fun no matter what the cause.