This can't be further from the truth. I don't understand why so many people assume US and EU to represent "the world".
As far as the coronavirus is concerned, Japan has it under control whilst the biggest market for luxury goods, China is on the mend now, after being in lockdown for so long, they are breaking out and ready to spend again and a 2k Maz means nothing really.
As for "the world", rich folk will still be rich folk. Spending for them is still a non-issue. Its only middle class and lower folk who feel the pinch right now.
As for Mazaki, I do kind of understand his position, no one is going to buy Dammy knife for work with the current, you can buy his normal knives and they will work equally well. If he is going to be stuck with Dammy stock in his workshop, the wise choice would be to offload them for a bit more cash to a retailer who can sell it for him. He needs to feed himself now too.