Court paid so-called experts are nothing but thieves who will say what they are paid to say. I happen to also have experience with such paid "whores"!
There are ways to make a father financially responsible. The law is on the child's side. However, if your sister and your family chose to have nothing to do with the father, then you all have chosen to foot the bills. You all get to live with that choice.
My greater concern is for the innocent child who has to bear the scars.
The child hasn't been scared and no one has stressed to the child that his dad tried to abort him and doesn't want to pay child support.
Not being one to give up, my sister then dated a guy from Pakistan who was polite and ended up also lying about everything. He has several women it ended up.
I can't think of any honorable Persians at all and I've come across plenty to see the pattern.
I think the ones that were born and raised here are more or less normal. The others off the boat should be avoided like a plague and should marry their own if they can find one willing to put up with them.