Let's be realistic, you can't just BAN the BNP, even if people wanted it to happen. That sort of thing just isn't acceptable in this country. And let's be realistic on another note - there is simply no way that the BNP are going to get to power - at least not in our lifetime. You ought to be saying how we should ban the Muslim extremists also, they're just as dangerous as the British national party. You're worrying about nothing for the moment - it's mainly hype that's creating fears about the BNP.
The real worry is when everyone around you, even ethnics, start voting for them because they're sick to death of the amount of immigrants that are coming in. The island is too small and the country can't hold it - it's these left-wing labour twats who've created these problems, so if you want to blame anyone, blame the left-wingers; it'll be on their shoulders if the BNP ever get to power.