There was no legal marraige to make this LEGAL marraige a bigamist marraige! He was married by tribal tradition. The British government did not recognize TRIBAL marraiges.
You have NO evidence that he was already LEGALLY married to go and summarily dismiss this marraige to Ann Dunham as VOID.
The UK did recognize a tribal marriage. A tribal marriage was legal in Kenya. Go read the law in Kenya. The government has a website where you can research old law.
So wrong to your first point.
Second point, sheesh..there is plenty of evidence he was already married. Kezia has admitted it, too. It wasn’t hard to get married in the Luo tribe.
If you had a lawyer representing you and you put your career and the safety of you and your family on the line..would you want your attorney to recognize this is a problem..or would you want your attorney to just go blindly down one path.