Racist Rants ?

Jimmy Carter and others feel that racism was the motivating factor behind Congressman Joe Wilson calling President Barrack Obama a liar.
Why?
Because one is white while the other is Black?
Maybe Joe just doesn't think Obama's plan is the best plan.
Maybe Joe listened to too many of the talking points of his fellow Teabaggers.
Maybe Joe was just acting like the rest of his kind.
(But IMO - Race is the motivating factor behind Joe's outburst. Which is sad because he should have been more composed and thoughtful in making his valid arguments known.)

I wonder if Kanye would have gotten up and taken the mic from anyone other than a little frightened white girl.
While race was not the motivating factor behind Mr. West's actions - his perception of the girls race was.
He knew that Taylor would not knock him the fuck out.
Mr. West's words were neither brave nor noble - instead, they were a feeble attempt at demonstrating his idea of a dominant culture.
They were harsh words stated in a safe environment against a safe victim.
In other words - Kanye is a punk.

Serena had to know that the little Asian woman would take any animated criticism levied against her a threat against her life.
Just look at the line judge - she looks like a docile puppy who was caught pissing on one's carpet.
Since the perceptions of the respective races are at the opposite ends of the spectrum (Black = big and bad, while Asian = slight and feeble), the muscled Serena is seen as picking on her terrified victim.
Was race the motivating factor or an underlying cause of Serena's anger?
Was race even considered when Serena protested the call?
Nope.
The heart of the argument was the wrong call at the wrong time by a line judge who doesn't understand that fans come to these events to watch players play - not to watch line judges make calls.

So... in the three recent cases of poor etiquette (all being blamed on race) - only one seems to even have originated with race.
Apparently, not all negative interactions between races are examples racism.