Here's [1] an old NYT article saying there's ~8k commercial mushroom foragers in the US in 1993. I'm sure it's more now.
I know that in Europe there's a lot of commercial scale mushroom foraging going on in Eastern Europe.
[1] https://www.nytimes.com/1993/06/28/us/rushing-to-gather-up-c...
I like to cut them into pieces and either sauté them or pan fry them like with light breading, like my homemade chicken nuggets.
The book describes and analyzes the globalized commodity chains of matsutake mushrooms.
However, I do consider it a good and prudent thing to "bet against" things that are crucial to us. Whenever there's a major threat, it's wise to also prepare to mitigate its consequences, since saying "we must prevent this" "we need to achieve X or the bad thing will happen" is, even if very true, often not sufficient, and betting everything on the expected success would be just naive wishful thinking, we definitely have to hedge our bets for everything that matters.
What's more, one simple way of getting a bunch of morels to grow on a specific patch of land turns out to be setting it on fire, so growing them on a basement would even probably end up being a net positive.
No one is going to die without morels but without the soil food web, we are a dead barren planet. Mushrooms and fungi and mycelium is evidence of a living planet. We need that signal to determine the health and viability of earth.
When I ask for robots on the farm, I am betting against low paid manual labour. When I develop long supply chains and invest in more and more warehouses, I am betting against local manufacturing industries. When I create indoor morels(even amongst all the other wild mushrooms, morels are very special), I am betting against the soil food web of life and cycle of life.