Its one person, who cares really? You can't take a gp off a country because of one or two idiots. As DC said how can you stop one idiot coming through the gates and then blackening his face up.
You can have the stewards remove him from the ground and hand him over to police. Or generally act like you take racist abuse seriously. The problem is not the particular morons involved its the systemic failure of the authorities to take it seriously and act with appopriate force that's the problem.
