Meat is in fact bad, you have to grow plants to feed animals and the ratio of feed to meat produced is really really low, around 1:10 If you use those plants to instead directly provide nutrition to humans the ratio is 1:1

Responsible meat production uses orders of magnitude more land, which there simply isn't enough of if we wanted to replace our current meat consumption levels.

Either we can reduce consumption, keep polluting, or look at some of these alternative technologies like lab grown meat.