I didn't specifically mention a basketball player being booed. My exact comment was "How do you know some of the boos directed at some of the basketball players are not because of race?". Its a very general question, not even a statement.
I have been to three NBA games (all in NYC), where players have been booed. My statement stands - "How do you know some of the boos directed at some of the basketball players are not because of race?". This was the biggest part of the conundrum around Adam Goodes. Given that some of the consistent booing I witnessed was towards dark skinned players from white supporters, in hindsight, there is some doubt in my mind over what they were booing about.
The Richard Sherman saga was not solely about his comments straight after the game, which were aggressive - TO THE CAMERA (not towards Erin) - and Crabtree. (Also note, this was AFTER Crabtree refused to shake his hand at the end of the game and instead pushed him in the face guard). He even specifically said his comments were towards Crabtree when Andrews asked him.
The biggest part of that issue was the amount of times the white media started calling him a Thug after it. This cartoon sums up the issue that Sherman had being called a Thug repeatedly.
You have completely misunderstood when that 'saga' became a race issue, which was in the hours and days after the interview. Unless your take on it was that you were terrified of the beautiful white woman standing next to a college educated black man who had just made the play of his life, but was angry after being pushed in the face by his opponent when he went to shake his hand...
I never said I had a clue about your experience with racism.
You, yourself, said you only have experience racism in one place in the world. This isn't surprising to me given your skin colour and the cities you have lived in (all of them being some of the most ethnically diverse first world cities in the world).
If you have only experience racism in one city in your life, that is a completely unrealistic view of racism in this world IMO. I stand by that statement too.