I take it you don’t practice family law...
All sorts of evidentiary rules don’t apply to the family law arena— income tax returns, hearsay, “Riflerize” etc.
The case you cited to to prove paternity is completely different than a civil case. Family law looks to provide support for spouses and especially children, and there the family law judge would seek to find paternity, for the child’s welfare. Evidentiary rules notwithstanding.
That is not our case here.
Obama should submit the vault copy of his birth certificate, anything else will be viewed with distrust (per the jury instruction).
Actually, I believe the case (going from memory) was one to determine custody, or visitation rights. Paternity had already been established or stipulated to, and the plaintiff was not the biological father.
No, I've never practiced family law - of any kind - but, I suspect you might not have a lot of experience in federal court. The rules for "Proving an Official Record" are quite clear. A certified copy of a Certification of Live Birth more than meets the federal standard.
Of course, this is all just wild and meaningless speculation as one of these cases would actually have to be heard on it's merits for this to be relevant. I don't believe that's very likely.