Erm I think hes alluding to the fact you said he'd been British since 2008, which does actually make him....British. Or do you think there's a min length of time for one to be considered properly British?
Being born and raised in Kenya and South Africa, then moving to live in Monaco, doesn't really make you very British at all. We just gave him a passport so he'd win races for us, I can understand why that pisses people off.
Oh Im not disputing that, the fact is though, BCC stated the guy was British then questions how he can win British Sports Personality of the Year. Question is I guess, although he IS British now, why don't you consider him to be British? Actually a better question would be (I cant be arsed googling it): How does one become British?