"i don't want them running the country...but i want them in parliament"
But supposing a lot of people think the same way and get them into Parliament, so there are enough to run the country.
A friend of yours then confides to you one day that her husband forces himself upon her every night, but she can't say no because the BNP have changed the law and he could divorce her for that, and get the children.
Another friend is raped one night by a mutual friend who you then see down the pub boasting about it. He was let off by the Police as due to the BNP rape is no longer a crime as it's just like force feeding a woman chocolate. He sees you leave the pub and starts to head out the door himself.
Your local corner ship is run by someone who's Indian grandparents emigrated here in the 1940s. The Grandfather fought for the British army and has a number of medals of which he is justifiably proud. His family are being harassed nightly by thugs while the BNP local authority are offering him money to go "home". His grandfather is distraught that he fought and his friends died for the Country that now wants him gone.
Your child comes home from school with his new history book that tells him that the Holocaust never happened, that it was all a Jewish conspiracy to trick themselves a homeland. He tells you that he hates the Jews for the lies they've told about the honourable Nazi party.
The BNP check your family history and find out that your Great Grandparent was an immigrant. If he had a white skin that would be a problem, but he didn't, he was an Indian who worked for the civil service. Suddenly you're not British enough and are asked to go "home".
Daftpunk do you accept all of those things happening?
If you do, then well you might very well be a Fascist but you're choice of voting BNP at least makes sense.
If you don't then why on earth vote and support those people who would do all of this?
You'd want all of those negative things to happen just so that one issue that does concern you is addressed? And addressed in a very radical way. And possibly addressed in a way that would see you sent away too...