What is the real reason the establishment hates the BNP?

i think the racist/nazi label of the BNP ( which is a blatant exaggeration of their nationalist policies) is a red herring........the whole political system is mired in corruption,lies and deceit so i dont think any of these people have the right to tell me not to vote for a party that wants to put British people first.....so getting on their high horse to proclaim RACIST just doesn't cut it with me..whats the real reason why they are running so scared?.........after all the BNP are a tiny political party