Black man arrested in his own home.. Racist?

Okay, i havent read All of the story, but let me get this straight. A call was made saying there was a burglary in progress.. the police show up, ask the black man for his id (to prove he lived there), but arrest him anyway..? May I ask How this is racist??.. Okay, this is called the police are Retarded for arresting A man who proved his innocence, not racism. This would be racism if the police busted into the home, saw a White burglar and the Black homeowner and, without question, ume the Black man was the burglar. So, yet again.. How is this situation racist?