I have always been very dumbfounded by the lab meat craze, nature is very efficient by design, so it would be quite hard to even come close to this efficiency.

But on top of that we don't only get meat from animals (quite a few modern things use byproduct of meat production in fact) and the animals help us re/up-cycle things that would be just a waste otherwise.

All the anti-meat anti-animals' thing is just a new kind of religion that is based on the morals of a few alternative types who want to appear more virtuous than anyone else, in a desperate attempt at faux competition (race to the bottom).