I was from such a large family that when I first met my wife I told her: 'You can go work outside of the house and I'll stay home and continue making my cartoon strips. Maybe I'll make some commercials nearby you know I'll do anything locally but I would love to just stay at home and raise the kids like I did when I was growing up.'
Just as we reject racism sexism ageism and heterosexism we reject speciesism. The species of a sentient being is no more reason to deny the protection of this basic right than race sex age or sexual orientation is a reason to deny membership in the human moral community to other humans.