Under the rules of Islamic law any child born to a Muslim father is Muslim automatically regardless if that child’s mother is a Muslim or not. Within the rules of Islam there is not half-Muslim and half-another religion. It also makes no difference if supposedly his father renounced his faith in Allah later in life.
Obama was born a Muslim and grew up as a Muslim and allegedly converted to Christianity. Within Islam conversion to any other religion, becoming an apostate, is the absolute worst crime a Muslim can commit - even worse than murder. The only way to punish an apostate is with death by beheading, stoning, or hanging. Any Muslim who kills an apostate is immune from prosecution where Sharia law has jurisdiction.
At some point he converted to Christianity but the details on this are very murky. If he had converted while he was still a child (before reaching puberty) he would be imprisoned until he is of age and then ‘invited’ to accept Islam without the death penalty being imposed. Obama did convert as an adult so the death penalty would apply to him.
Since the Islamic world is not calling for Obama’s head on a plate for committing apostasy as an adult I would posit that Obama never converted to Christianity. Until I hear the imams, sheikhs and other Islamic religious leaders call for his death I will always believe the ZerO is 100 percent authentically Muslim.
At some point he converted to Christianity
Only if black separatism is a form of Christianity.