People would buy em, if they could find them on stores. Like literally almost any GPU that could be found on stores, people would buy em. So either AMD partners are just straight up selling to mining operations direct, or they just can't get allocation on TSCM or what volume they can get allocated goes to their much more profitable, booming businesses like Ryzen or the consoles.
My bet personally is on the later: I've always maintained that AMD fighting a war on two fronts it's never going to work and the smart thing to do is to bring the fight to intel since they're actually ahead (EDIT: Ahead in tech, arguably. Intel maintains dominance on the market share specially for lucrative areas like data centers but that takes time they just need to sustain to eventually flip those data centers too) And is not like their Radeon division is completely forgotten since they're still the main tech behind both major consoles. They might want to keep up with that tech but realistically speaking, not for at least 3 or 4 years before any major console releases, probably quite more.