Intel stopped making memory in 1985. Everyone who ever did that work there is retired or dead today. Any random startup will have the same likelihood of success that Intel could ever hope for.
It would probably be easier for Micron to double their memory production, than it would be for Intel to beat Micron's annual shipments.
They also don't have to match Micron, they just need to introduce sufficient marginal supply to a supply constrained market or use it to their advantage by making the memory for their own platforms by-passing the shortage everyone else has to contend with.
Intel could have piles of GDDR sitting around, and Arc GPUs would still be have limited supply. It's just the way the product was made.
More of these would be immensely helpful, right about now given the inference landscape.