“Regardless of how much Obama may “hate” the United Kingdom, he still is a citizen of the UK.”
Obama is not now nor has he ever been a UK citizen under the facts that we know at this time.
This might change IF there was a wedding to Ann and IF Obama Sr has divorced Kezia prior to that wedding and had no other wives. Under these circumstances the law may have allowed him to be a citizen with an affirmative act. I am not sure about this particular set of laws under this particular set of facts.
Obama is not now nor has he ever been a UK citizen under the facts that we know at this time.
That is incorrect. Based on what we know, Obama's father was a Kenyan colonial citizen, i.e. a British citizen. Married or not, UK citizenship does not follow U.S. statuatory or naturalization citizenship. If one is born to a U.K. citizen, one is a U.K. citizen.
Mr. Obama had UK citizenship at the time of his birth. In 1964, he gained Kenyan citizenship, but never lost his UK citizenship. Kenya could never have removed this citizenship as it had no authority to do so (he was under the age of 21).
Obama lost his Kenyan citizenship after the age of 23, but never renounced his UK citizenship gained at birth. This means he is still a citizen of the United Kingdom to this very day.