IMO this is a preposterous theory not supported by any documentation. We do have pictures of baby Barry (sure, none have been produced in evidence...but) and the adult Barry looks just like his Gramps in the “big smile” pictures. Also IMO Barry's half-brother, David in Kenya looked just like him establishing the paternity link to BHO Sr.
We also have the US Gov’t INS docs showing strong belief that there was a bigamous marriage in Feb 2 1961 and a baby by SADO and SADO intending to move to WA in the fall of 1961, all of which are corroborated by U of WA and U of HI documents.
My preposterous theory does not state who the bio daddy is. I happen to think he is BHO’s son but of another mother than SAD. I believe that mother is Phillipean and her name is Ann Obama.