EVERYONE is selfish, it's the way we're made, you know? To look out for ourselves and our best interests. Sure, breeders say they aren't selfish because they have sprogs to care for, but the twist there is that they only really care about THEIR OWN family unit...the rest of humanity be damned. And really, I'm guessing the only reason many breeders provide their sprogs with a modicum of care is because if they don't, they'll end up in jail. They aren't doing it out of love or devotion, but out of punishment avoidance.
I may be selfish in my choice to not breed, but that affects ONLY ME. When you breed, and refuse to do a proper job of raising your spawn, you are affecting EVERYONE in a bad way, and that's the height of selfishness.
"It truly is the one commonality that every designation of humans you can think of has, there's at least one asshole."
--Me