I was pretty much raised by my stepdad. I hated his guts. He's gone now [dead] and in retrospect I see how much knowledge and life savy he gave me.
But I don't like him anymore now than when he was alive. When you have kids even if they arn't yours; treat them with a little human dignity even if you don't love them. To me this seems obvious but I guess it's not.
Peace my brothers!!