>>3578778A: factories take years to build, so the market simply can't adapt quickly to meet unexpected spikes in demand like this
B: expanded production capacity costs money, and if demand does not remain high, then that extra infrastructure is purely a financial loss.
C: the current shortage is artificial and driven by scalpers mass-buying product to resell it at a markup. It won't persist and will disappear the moment there isn't enough scarcity to produce a shortage, so expanding production is actually the opposite of what they want to do.
The status quo is good for producers and bad for consumers, so the status quo won't change until governments introduce regulation targeted at curbing the source of the shortage: scalpers profiteering from the stupidity of bitcoin chuds.