I eat cheap mass produced meat because it's often an ingredient in the things I put on the menu (hamburgers about once a week and tacos about once a month). I buy the store brand. If someone wants to make a more environmentally friendly semi-meat or non-meat product that is a drop in replacement for meat in my use case and is superior in any other way (shelf life, price, health, taste, etc) and equal in the rest then I will use it. At present nobody has done that for beef.

Well for starters, a lot of them probably can't afford higher quality meat. Quality over quantity doesn't work if the quantity goes down too far.