I'm sure if his son's team had taken the knee before the game then the racists would have stopped being racists and non of this would have happened...
Joking aside (and I know it is a bad joke but I wanted to make a point about how futile and ridiculous the taking the knee gesture really is about changing minds), the concern here is this took place from Manchester Grammar School boys/staff/parents or certainly someone connected to the school it would seem.
You would think (well I would) that there would be a bit of brains in that lot somewhere and not ignorance and intolerance as there clearly was.
I've been watching a documentary about 'A Killing in Tiger Bay' (which I highly recommend) about racism.
Part of the true story is that five black men were deliberately taken from Cardiff (where the murder occurred) to Swansea for trial - clearly it seems because at the time hardly any black people lived there at then and it seemed certain that they'd be found guilty on the colour of their skin as much as anything else.
https://www.bbc.co.uk/iplayer/episode/m000zhg7/a-killing-in-tiger-bay-series-1-1-the-murder
Maybe the good people of Manchester Grammar are predominantly white and elite and judge others on their class and skin colour?
I don't know, I would have thought these days there would not be such barriers to attend any school let alone Manchester Grammar?
For any change to happen it requires a change in behaviour and it takes far more to achieve that than some footballers kneeling before a match, it takes years of education and integration and recognition that racism isn't just one way - whites to blacks.
Children are not born racist, they learn to become one from those around them.