Why aren't you calling for all people that have associations with owners, jockeys, trainers, vets, farriers, stable hands, track work riders, media to be banned?
That could be hairdressers, doctors, dentists, librarians, plumbers, sparkies etc etc etc. Anyone.
I've never gone to the races and not received inside info that isn't public knowledge yet. You'll have to ban them all given the advantage they all have.