While I assign pretty significant utilitarian value to "stop eating animals", it still falls a few orders of magnitude short of "provide for the health and wellbeing of humans".
We are, at the very least, decades away from having a complete enough understanding of nutrition to safely replace the nutritional value of beef with a substitute fake beef product. Once we accomplish that, there are some second-order effects to worry about, like increasing single-path reliance on complex agrochemical supply chains to meet basic nutritional needs.
It's also worth keeping in mind that living off plants generally kills more total animals (although smaller animals) than living off medium-large animals.
We are, at the very least, decades away from having a complete enough understanding of nutrition to safely replace the nutritional value of beef with a substitute fake beef product. Once we accomplish that, there are some second-order effects to worry about, like increasing single-path reliance on complex agrochemical supply chains to meet basic nutritional needs.
It's also worth keeping in mind that living off plants generally kills more total animals (although smaller animals) than living off medium-large animals.