Then I would show him this video of Nick Griffin denying the holocaust.

"nonsense about gas chambers"

If he still persisted with his desire stand on a BNP ticket after that then I would organize all our mutual friends to disrupt every speech he made.

Some people choose the BNP because they thin they are honestly just an ordinary caring party who are awake to problems caused by immigration that other parties are irresponsibly ignoring.

They make this choice out of ignorance.

If they carry on afterwards and choose to be associated with views like griffins as shown clearly in the videos above, then they should be treated as advocates of those views, i.e, with utmost caution and utter refusal to agree on any level with any of their "milder" views.