Obama claimed to be Kenyan until 2007: https://thewashingtonpundit.com/2019/02/06/evidence-proves-obama-used-kenya-as-birthplace-until-2007/
And why did he have all those names?
Maybe if, when he was asked for his birth certificate, he had said: "Here it is," then all would have been accepted.
But when nothing is produced for 18 months, and when it is produced the official government website version is an Adobe document stored in layers and not a bitmap we get suspicious.
And when we want to ask the person who eventually produced the birth certificate. Loretta Fuddy, about it we discover that she has died - and not in an ordinary way but as a result of a plane crash-landing in the ocean between Hawaiian islands. She survived the crash, as did everyone else, but never made it to shore - unlike everyone else.
We know all that because someone just happened to be filming in the plane before the crash and also after the crash. Lucky he took a waterproof camera with him.
At some point, the questions and coincidences become too great and cast doubt on the official story.
Obama's brother also produced a Kenyan birth certificate. That did not help, either.
EDIT: There is also this that shows that Obama Sr had a son in Kenya in 1961: https://dcdirtylaundry.com/flashback-british-national-archives-show-a-son-was-born-to-obama-sr-in-1961-in-kenya/
And there is this from British intelligence: https://www.youtube.com/watch?v=UdbmW8AvlJ4