Quite clearly this gesture, however transient, really really upsets the racists. They don't want to be forced to think about racism, they'd rather everyone just left them to their prejudices. The garbage about kneeling 'representing Marxism' is a good example. They aren't willing to stand up and say "I'm a racist, there's nothing wrong with that", so they need to manufacture another reason to cover their opposition to explicitly anti-racist demonstrations. So I'm in favour of continuing it indefinitely. Preferably during the national anthems.