There are many views one can have on this topic. One view is that, considering it's possible to live happily and healthily without animal agriculture, and considering how inefficient animal agriculture is and how many more resources it uses than growing crops (e.g., you're cutting out the inefficient middle man of feeding many times the amount of crops humans would eat to animals), and considering we know that animals have the capacity to feel pain and suffer (anyone who's ever spent time with a dog or a cat would admit this), then why support animal agriculture at all?
There are many views one can have on this topic. One view is that, considering it's possible to live happily and healthily without animal agriculture, and considering how inefficient animal agriculture is and how many more resources it uses than growing crops (e.g., you're cutting out the inefficient middle man of feeding many times the amount of crops humans would eat to animals), and considering we know that animals have the capacity to feel pain and suffer (anyone who's ever spent time with a dog or a cat would admit this), then why support animal agriculture at all?
People who want to think more about that might like this piece: https://apokerplayer.medium.com/the-best-most-logical-anti-vegan-arguments-477ebcc8aee1