Nah, it's not my place to tell you whether paternal/maternal love is good or not. People may find it intrinsically valuable, but maybe you don't value it terminally.

Another reason to consider paternal/maternal love is that you're probably more motivated to care for someone you love, other things being equal. Personally, I'd be willing to be responsible for a cat that I don't love, but I wouldn't want to have parental responsibility for a human I didn't love.