He is English, an has lived in England all his life. so I think it's fair for him to express his opinion on what he thinks of them, since he has enough experience of them to have a valid opinion. So I think it's unfair if he has been warned.
Just 'cause he is English doesn't mean that he can insult every other English person based on their nationality.
Money, power, sex... and elephants.
-- Capt. Simon Illyan, ImpSec