Obama cannot have U.S. citizenship at all if he wasn’t born under the jurisdiction of the U.S. because U.S. citizenship law has two components: blood and jurisdiction. If he was born in Hawaii as the evidence indicates, he is a U.S. citizen, just not a natural-born citizen.
I just have to say that we have no genuine evidence that Obama was born in Hawaii. Nearly every agency that claims to have any records on Obama has been caught falsifying or fabricating records on Obama’s behalf. That being the case, none of the evidence can be presumed to be genuine without first looking into the provenance of the documents on which they rely.