I believe, and Bill Ayers claims, that Ayers wrote Dreams and loaded it with political spin. We don't know whether the BC Obama supposedly saw was from HI or Kenya, or whether he saw one at all, as he has not released his HI vital records.
In Dreams, Obama (or Ayers) states that he himself is not certain that his parents were ever married and that he didn't dare look into it for fear of what he might find. This shows that on the public record, Obama is not concerned about being perceived as a possibly illegitimate. Recently HI did release a vital record for the Dunham-Obama marriage, so I am convinced it happened.
But an HI marriage would be invalid (a legal nulity) if bigamous under the 1902 Kenya Marriage Act, and the 1948 BNA forbids passing UK citizenship to illegitimate children which would eliminate dual citizenship.
My contention is that if, for example, D’Onofrio’s quo warranto challenge to Obama’s eligibility based on dual citizenship backs Obama into a corner, it will be Obama himself who will use the bigamy of his father as a “get out of jail free” to negate D’Onofrio’s assertion that a person “governed by the 1948 BNA” at birth can't be NBC and can't be president.
Again, if discovery opens up a Kenya birth with proof that meets the FRE, Obama is toast.
This shows that on the public record, Obama is not concerned about being perceived as a possibly illegitimate.