This Group Makes Me Sad.
If you have a reason to "hate" your kid, like if they beat up on you or steal from you, or wrong you in some kind of way, then I guess you have every right to. But I have read some of these stories and I'm utterly disgusted. One person said she hates her "colicy baby." Well, give him up for adoption to a family that will actually give a crap about him, rather than saying you wished you'd had an abortion. It is a total shame that God gives ungrateful, selfish people children when there are people out there who long for a child and can't get one. A baby can't help he's colicy.
Also, because your kid looks and/or acts like his father does not by any means give you the right to automatically hate them. The child did not get to choose their paternity. Jesus, my teenaged parents acted WAYYY more mature than the people in this group.
Hating an adult child is one thing, because they're old enough to have put you through hell, like one guy I know who beats him mom physically. But hating a child or baby is ridiculous. They need and deserve love and affection.