Well, the truth is that the child and the parents all agreed to this before any were born. None are born by happenstance. Many aspects are decided before any conception takes place. So, because this person exists, he gave consent.

However, what will the courts do with this?
Since that cannot be a criminal case, it will be settled for money.
How much "pain & suffering" did the actions of his parents cause?
And how much is that worth?

That is all the court will decide.

To bad the court won't just tell this guy to "go fuck off and die".