A large part of the population, including the current president said Obama was Kenyan. If you don't think that idea was incubated in racism then you've decided to be ignorant.
A large part of the population referred to him as Barack Hussein Obama every time they talked about him because they were trying to paint him as a Muslim. If someone goes out of their way to use his middle name every time they talk about Obama then it is an idea incubated in racism.
Some people weren't racists but a lot of people were racists and didn't even realize it.
Or maybe because the name Hussein is kinda Muslim sounding...oh wait, it is a Muslim name and his family, on his father's side, had many ties to the Muslim faith. If someone didn't know it, they would assume he was Muslim although he was baptized in the Christian faith.
Do you have any sources for this or is this just an opinion you pulled out of your ass again? You and shookster always throwing your opinions around as if it were fact.