But as i said, it won't. It won't effect them at all.
Aside from the fact that this top-down manouvering would do precisely nothing to deal with the growth of the BNP, in fact it would be potentially counter-productive, in that it would push people already alienated from most politics further into the arms of the BNP, the only people (currently) telling them that the politicians don't give two shits for them or their needs, and they can point to the trickery employed to keep them out of the election process as an example. It would lead to a hardening and expansion of BNP support IMO. A pretty poor return for starting down that dangerous slippery slope.