Would Obama really stand behind America and defend our people?

Obama couldn't even bring himself to stand up against a racist church congregation that was slandering Americans. So what if they are white? Does that make them any less of a person? My issue is this, why apologize for it later? Obama was there and could have stood his ground, got up and said to his preachers, "Hey, I don't want you slandering people and yelling out racist remarks." Instead, he didn't. Obama sat there applauding and cheering like the rest of his racist congregation. Then he has the audacity to go on television and say he denounces their racist practices? Why not take a direct approach and resolve the situation when it arises? Why did Obama have to wait till after the evil was committed to try to right things? I believe Obama is neither sincere or truthful about his racist beliefs and this is what scares me.