So you know more than the researchers that researched his mother's family history?Y'all have officially jumped the shark.
"Obama is African-American through his MOTHER" is the most ridiculous internet-only thing I've ever heard.
This country is literally filled up with White people that had Black ancestors.. We used to refer to those people as "passing for White."
Anyway broah you have clearly woken up on this Sunday morning and chosen violence and ignorance so have at it.