I don't think it's racism either. The desire is to preserve English culture in England. An appreciation for other cultures has been expressed by the one articulating this desire numerous times. The difference is that the thread originator is concerned that English culture will die out (not that other cultures are not as valid as English culture), and the belief is that stopping some kinds of immigration will prevent this from happening. I don't happen to agree with this idea myself, but it's not racist.