Lol I'm not negative. I'm realistic, and you don't want to hear it because that means properly admitting the scale of horrendous destruction you've caused.
You are delusional I'm afraid if you think it's me personally, just being negative. And I don't mean that offensively, I mean it literally. You are absolutely deluded about what you've done. There is no "positive" here for any of them.
Phrase your question differently. "I've destroyed my wife. I've destroyed my children's mother. I've destroyed all of their futures. I've broken a home. I deceived and betrayed all of them. All of this was less important to me than shagging someone else. As further by product to all the deceit, destruction and betrayal, I let the other woman get pregnant, and whilst I've shown my children just how little I thought of them, I'm now showing them I dote over the affair baby. Yeah, yeah I'm a baddy. Why won't everyone just get on?" How do I make my children love this baby?"
Do you hear that out loud? It's not negative. It's not a kicking. It's what you did. And if it sits so badly with you to merely hear that, then try and grasp what you've actually done to your wife and family who lived it.
They are unlikely to ever fully accept this child. Did you think there would be sisterly love shining through because it's dads affair baby? The only reason you want them too, is so you can have them all on the same day, to make your life easier.
Oh, and another thing, while you continue to claim you don't favouritise the baby, why is the baby the only one you spend one to one time with? Why do your two children get a shared 50%, so 25% each at best, always with another child in the background, yet you make the time for 30% one to one time with a baby?