Let me help you out, here.
Herbivores: Don't eat meat; shouldn't eat meat
Carnivores: Don't eat vegetation; shouldn't eat vegetation
Omnivores: Should balance between the two - exclusively meat is bad; exclusively vegetation is bad.
Now, outliers are a thing. They exist everywhere in the world. Some people can run like no humans should be able, for example.
In general, vegans I meet are underweight. They are very easy to spot. Hey, skinny dude who needs at least 20 more pounds to start looking healthy, are you a vegan? Yup will be the answer, almost 100% of the time, but not always. STA calls them soy boys, and he's not wrong.
You want animals to starve in the street, rather than prevent them from procreating. Misguided and completely unaware that actions have consequences.
If every breeder stopped breeding today and every human stopped owning pets today, do you know what would happen? Millions more animals would die of starvation and exposure to the elements than ever before.