In the end, the bullying got so bad we had to move him. At his new school he is still being taunted with "gay", but not, I think, being accused of having Aids.
There is a further problem these boys and their parents have to deal with. Because the victims are few and the bullies many, if the boys stand up for themselves, they become the centre of a number of disciplinary incidents.
Because they are the constant, the school comes to see them as the ones with the social or behavioural problems, and they are labelled as the problem rather than the victim. All this because a child cannot see the point of kicking round an inflated bit of plastic when they could be reading or exercising their imagination.