They still haven't figured out a way to humanely slaughter animals let alone keep them in fulfilling environments that would be impossible to tell from their wild counterparts.

We can't afford to let animals live full lives. Pigs are butchered at 6 months but can live decades naturally.

We haven't even begun to approach the conversation of maybe possibly being able to in the maybe distant future being able to consider a humane way to keep animals and then also harvest meat from them when they pass.