1) Sold out (unlike Ryzen CPUs, even 7950X is readily available)
2) This doesn't use ASIC chips (unlike BTC or LTC), it uses RISC-V CPUs. Look it up.
RISC might be more efficient than CISC (x86), but it's still not an ASIC. You won't find a single RandomX ASIC.
You also won't see anyone using RISC-V CPUs for BTC or LTC mining.
You're burying yourself in details overlooking the economical aspect.
There is a machine that mines randomx cheaper and with less power than a CPU excluding the later one additional demand for components and electricity cost, that's what matters.
You're ignoring the randomx daily reward that makes little sense in spending too much on gear, $73k last day, or 0.23% that of BTC. Do you see anyone pouring money in stuff that has than 0.1% of market share?
You're ignoring the security aspect, that thing does 212kh/s Monero hashrate is 2.5 gh/s, how much is that in $? 6 million! Six million in gear to reach half of the hashrate! The prefect chain to secure billions, right?
IMO people aren't the sheep some posters here think they are. Yes, they chose credit cards over cash, but that's because most of them were certain that the money on their card is real cash converted to ones and zeros. The risk of using a card over cash wasn't really that big for your average joe, but the convenience was greatly increased.
Sweden would love to have a word with you!