Veganism is not a "sacrifice." It is a joy.
It costs us so little to go vegan. It costs animals so much if we don't.
We do not think clearly about our moral obligations to animals.
Ethical veganism represents a commitment to nonviolence.
Domesticated animals such as dogs and cats are vulnerable and entirely dependent on us for all of their needs. They live very unnatural lives because they are not part of the human world and they are not part of the animal world.
We cannot justify treating any sentient nonhuman as our property, as a resource, as a thing that we an use and kill for our purposes.